Answer :
The ratio of 284 out of 1000 can be written as,
[tex]284\colon1000[/tex]
By dividing both terms by common factor 2, it can also be written as,
[tex]142\colon500[/tex]Again by dividing both terms by common factor 2, the ratio becomes,
[tex]71\colon250[/tex]The ratio in three ways can be written as, 284:1000, 142:500 and 71:250.