Finding the Fourth Proportional to 529,149.63, 730,239.66 and 287,432.13
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Solution
The fourth proportional to 529,149.63, 730,239.66 and 287,432.13 is: 396,663.49
Step by Step Solution
- Step 1: Write the proportion equation
529,149.63 : 730,239.66 = 287,432.13 : x - Step 2: Convert to fraction form
529,149.63/730,239.66 = 287,432.13/x - Step 3: Cross multiply
529,149.63x = 730,239.66 × 287,432.13 - Step 4: Simplify right side
529,149.63x = 209,894,340,884.28 - Step 5: Solve for x
x = 209,894,340,884.28/529,149.63 - Step 6: Final answer
x = 396,663.49
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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.