Finding the Fourth Proportional to 498,490.52, 687,913.42 and 272,136.02
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Solution
The fourth proportional to 498,490.52, 687,913.42 and 272,136.02 is: 375,545.80
Step by Step Solution
- Step 1: Write the proportion equation
498,490.52 : 687,913.42 = 272,136.02 : x - Step 2: Convert to fraction form
498,490.52/687,913.42 = 272,136.02/x - Step 3: Cross multiply
498,490.52x = 687,913.42 × 272,136.02 - Step 4: Simplify right side
498,490.52x = 187,206,021,262.83 - Step 5: Solve for x
x = 187,206,021,262.83/498,490.52 - Step 6: Final answer
x = 375,545.80
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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.