Finding the Fourth Proportional to 1,383,581.40, 1,909,260.09 and 802,759.55
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Solution
The fourth proportional to 1,383,581.40, 1,909,260.09 and 802,759.55 is: 1,107,760.45
Step by Step Solution
- Step 1: Write the proportion equation
1,383,581.40 : 1,909,260.09 = 802,759.55 : x - Step 2: Convert to fraction form
1,383,581.40/1,909,260.09 = 802,759.55/x - Step 3: Cross multiply
1,383,581.40x = 1,909,260.09 × 802,759.55 - Step 4: Simplify right side
1,383,581.40x = 1,532,676,761,135.06 - Step 5: Solve for x
x = 1,532,676,761,135.06/1,383,581.40 - Step 6: Final answer
x = 1,107,760.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.