Finding the Fourth Proportional to 518,355.12, 715,326.88 and 292,073.52
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Solution
The fourth proportional to 518,355.12, 715,326.88 and 292,073.52 is: 403,059.66
Step by Step Solution
- Step 1: Write the proportion equation
518,355.12 : 715,326.88 = 292,073.52 : x - Step 2: Convert to fraction form
518,355.12/715,326.88 = 292,073.52/x - Step 3: Cross multiply
518,355.12x = 715,326.88 × 292,073.52 - Step 4: Simplify right side
518,355.12x = 208,928,039,792.22 - Step 5: Solve for x
x = 208,928,039,792.22/518,355.12 - Step 6: Final answer
x = 403,059.66
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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.