Australia cruised to a 57-run victory over Pakistan in the fifth and final one-day international at the Adelaide Oval on Thursday.

After setting an imposing total of 369-7, thanks to a record opening partnership of 284 between David Warner and Travis Head, the Australians bowled Pakistan out for 312.

Pakistan's Babar Azam scored 100 and Sharjeel Khan a quickfire 79, but the home side were always in control and celebrated Australia Day in style with a convincing win.

Warner and Head earlier got Australia away to a superb start, with Warner particularly damaging as he smashed the Pakistan attack.

Warner blasted 179 and Head 128 on their way to an opening stand of 284, a new Australian record for any wicket in ODIs.

Both batsmen made their highest scores in ODIs, with Head also recording his maiden international century.

After losing the toss and being asked to bowl first, the Pakistanis almost got the perfect start when Mohammad Amir enticed an edge from Warner with his first ball.

But a diving Azhar Ali at first slip could not hold onto a difficult chance and Warner was soon in full flight.

He brought up his 50 from 34 balls and his 100 from 78 including 11 fours and two massive sixes. His 150 came from only 107 deliveries with 17 boundaries and three sixes.

Head was far more circumspect but once the ball stopped swinging after just four overs, he began to look more and more comfortable.

On a flat pitch that offered nothing to the bowlers, the Australians were untroubled until Warner began to cramp, restricting his movements.

Warner eventually fell when he swatted a short ball from Junaid Khan to Babar at point with the score on 284.

Australia were headed for a score well over 400 when Warner and Head were in full flight but Pakistan fought back with some late wickets to restrict them to 369.

Pakistan's chase started badly when Azhar fell leg before to Mitchell Starc for 10, but Sharjeel and Babar moved the score to 140 before Sharjeel mistimed a pull shot and skied a catch.

SCORES IN BRIEF

AUSTRALIA: 369 for 7 in 50 overs (Warner 179, Head 128; Junaid 2-61, Hasan 2-100)

PAKISTAN: 312 for 9 in 49.1 overs (Sharjeel 79, Babar 100, Akmal 46; Starc 4-42, Cummins 2-60)

Result: Australia won by 57 runs and clinched the five-match series 4-1.

Player-of-the-match: David Warner.

Player-of-the-series: David Warner.