Finding the Fourth Proportional to 523,135.91, 721,902.94 and 290,577.92
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Solution
The fourth proportional to 523,135.91, 721,902.94 and 290,577.92 is: 400,983.85
Step by Step Solution
- Step 1: Write the proportion equation
523,135.91 : 721,902.94 = 290,577.92 : x - Step 2: Convert to fraction form
523,135.91/721,902.94 = 290,577.92/x - Step 3: Cross multiply
523,135.91x = 721,902.94 × 290,577.92 - Step 4: Simplify right side
523,135.91x = 209,769,050,411.13 - Step 5: Solve for x
x = 209,769,050,411.13/523,135.91 - Step 6: Final answer
x = 400,983.85
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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.