Finding the Fourth Proportional to 728,126.92, 1,092,189.42 and 338,594.68
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Solution
The fourth proportional to 728,126.92, 1,092,189.42 and 338,594.68 is: 507,891.57
Step by Step Solution
- Step 1: Write the proportion equation
728,126.92 : 1,092,189.42 = 338,594.68 : x - Step 2: Convert to fraction form
728,126.92/1,092,189.42 = 338,594.68/x - Step 3: Cross multiply
728,126.92x = 1,092,189.42 × 338,594.68 - Step 4: Simplify right side
728,126.92x = 369,809,527,164.29 - Step 5: Solve for x
x = 369,809,527,164.29/728,126.92 - Step 6: Final answer
x = 507,891.57
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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.