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Finding the Fourth Proportional to 529,287.62, 730,532.40 and 325,513.85

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Solution

The fourth proportional to 529,287.62, 730,532.40 and 325,513.85 is: 449,280.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,287.62 : 730,532.40 = 325,513.85 : x
  2. Step 2: Convert to fraction form
    529,287.62/730,532.40 = 325,513.85/x
  3. Step 3: Cross multiply
    529,287.62x = 730,532.40 × 325,513.85
  4. Step 4: Simplify right side
    529,287.62x = 237,798,414,073.74
  5. Step 5: Solve for x
    x = 237,798,414,073.74/529,287.62
  6. Step 6: Final answer
    x = 449,280.14

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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.