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Finding the Fourth Proportional to 529,287.12, 730,531.71 and 325,513.35

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Solution

The fourth proportional to 529,287.12, 730,531.71 and 325,513.35 is: 449,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,287.12 : 730,531.71 = 325,513.35 : x
  2. Step 2: Convert to fraction form
    529,287.12/730,531.71 = 325,513.35/x
  3. Step 3: Cross multiply
    529,287.12x = 730,531.71 × 325,513.35
  4. Step 4: Simplify right side
    529,287.12x = 237,797,824,203.33
  5. Step 5: Solve for x
    x = 237,797,824,203.33/529,287.12
  6. Step 6: Final answer
    x = 449,279.45

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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.