Finding the Fourth Proportional to 498,505.41, 687,911.44 and 272,107.17
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Solution
The fourth proportional to 498,505.41, 687,911.44 and 272,107.17 is: 375,493.69
Step by Step Solution
- Step 1: Write the proportion equation
498,505.41 : 687,911.44 = 272,107.17 : x - Step 2: Convert to fraction form
498,505.41/687,911.44 = 272,107.17/x - Step 3: Cross multiply
498,505.41x = 687,911.44 × 272,107.17 - Step 4: Simplify right side
498,505.41x = 187,185,635,149.03 - Step 5: Solve for x
x = 187,185,635,149.03/498,505.41 - Step 6: Final answer
x = 375,493.69
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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.