Finding the Fourth Proportional to 721,036.08, 995,116.32 and 419,230.08
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Solution
The fourth proportional to 721,036.08, 995,116.32 and 419,230.08 is: 578,587.82
Step by Step Solution
- Step 1: Write the proportion equation
721,036.08 : 995,116.32 = 419,230.08 : x - Step 2: Convert to fraction form
721,036.08/995,116.32 = 419,230.08/x - Step 3: Cross multiply
721,036.08x = 995,116.32 × 419,230.08 - Step 4: Simplify right side
721,036.08x = 417,182,694,442.91 - Step 5: Solve for x
x = 417,182,694,442.91/721,036.08 - Step 6: Final answer
x = 578,587.82
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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.