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Finding the Fourth Proportional to 529,875.52, 731,218.08 and 291,411.52

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Solution

The fourth proportional to 529,875.52, 731,218.08 and 291,411.52 is: 402,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,875.52 : 731,218.08 = 291,411.52 : x
  2. Step 2: Convert to fraction form
    529,875.52/731,218.08 = 291,411.52/x
  3. Step 3: Cross multiply
    529,875.52x = 731,218.08 × 291,411.52
  4. Step 4: Simplify right side
    529,875.52x = 213,085,372,144.28
  5. Step 5: Solve for x
    x = 213,085,372,144.28/529,875.52
  6. Step 6: Final answer
    x = 402,142.32

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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.