Finding the Fourth Proportional to 521,134.76, 719,158.92 and 291,691.99
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Solution
The fourth proportional to 521,134.76, 719,158.92 and 291,691.99 is: 402,530.99
Step by Step Solution
- Step 1: Write the proportion equation
521,134.76 : 719,158.92 = 291,691.99 : x - Step 2: Convert to fraction form
521,134.76/719,158.92 = 291,691.99/x - Step 3: Cross multiply
521,134.76x = 719,158.92 × 291,691.99 - Step 4: Simplify right side
521,134.76x = 209,772,891,446.80 - Step 5: Solve for x
x = 209,772,891,446.80/521,134.76 - Step 6: Final answer
x = 402,530.99
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1.5x scale
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.