Finding the Fourth Proportional to 728,125.92, 1,092,187.92 and 338,593.68
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Solution
The fourth proportional to 728,125.92, 1,092,187.92 and 338,593.68 is: 507,890.07
Step by Step Solution
- Step 1: Write the proportion equation
728,125.92 : 1,092,187.92 = 338,593.68 : x - Step 2: Convert to fraction form
728,125.92/1,092,187.92 = 338,593.68/x - Step 3: Cross multiply
728,125.92x = 1,092,187.92 × 338,593.68 - Step 4: Simplify right side
728,125.92x = 369,807,927,084.35 - Step 5: Solve for x
x = 369,807,927,084.35/728,125.92 - Step 6: Final answer
x = 507,890.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.