Finding the Fourth Proportional to 542,286.47, 748,593.72 and 379,581.98
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Solution
The fourth proportional to 542,286.47, 748,593.72 and 379,581.98 is: 523,989.99
Step by Step Solution
- Step 1: Write the proportion equation
542,286.47 : 748,593.72 = 379,581.98 : x - Step 2: Convert to fraction form
542,286.47/748,593.72 = 379,581.98/x - Step 3: Cross multiply
542,286.47x = 748,593.72 × 379,581.98 - Step 4: Simplify right side
542,286.47x = 284,152,681,638.91 - Step 5: Solve for x
x = 284,152,681,638.91/542,286.47 - Step 6: Final answer
x = 523,989.99
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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.