Finding the Fourth Proportional to 389,757.17, 538,236.33 and 368,529.53
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Solution
The fourth proportional to 389,757.17, 538,236.33 and 368,529.53 is: 508,921.95
Step by Step Solution
- Step 1: Write the proportion equation
389,757.17 : 538,236.33 = 368,529.53 : x - Step 2: Convert to fraction form
389,757.17/538,236.33 = 368,529.53/x - Step 3: Cross multiply
389,757.17x = 538,236.33 × 368,529.53 - Step 4: Simplify right side
389,757.17x = 198,355,979,456.91 - Step 5: Solve for x
x = 198,355,979,456.91/389,757.17 - Step 6: Final answer
x = 508,921.95
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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.