Finding the Fourth Proportional to 498,542.12, 687,984.52 and 272,187.62
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Solution
The fourth proportional to 498,542.12, 687,984.52 and 272,187.62 is: 375,616.95
Step by Step Solution
- Step 1: Write the proportion equation
498,542.12 : 687,984.52 = 272,187.62 : x - Step 2: Convert to fraction form
498,542.12/687,984.52 = 272,187.62/x - Step 3: Cross multiply
498,542.12x = 687,984.52 × 272,187.62 - Step 4: Simplify right side
498,542.12x = 187,260,869,095.64 - Step 5: Solve for x
x = 187,260,869,095.64/498,542.12 - Step 6: Final answer
x = 375,616.95
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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.