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Finding the Fourth Proportional to 529,697.52, 730,997.04 and 287,996.34

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Solution

The fourth proportional to 529,697.52, 730,997.04 and 287,996.34 is: 397,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,697.52 : 730,997.04 = 287,996.34 : x
  2. Step 2: Convert to fraction form
    529,697.52/730,997.04 = 287,996.34/x
  3. Step 3: Cross multiply
    529,697.52x = 730,997.04 × 287,996.34
  4. Step 4: Simplify right side
    529,697.52x = 210,524,472,070.83
  5. Step 5: Solve for x
    x = 210,524,472,070.83/529,697.52
  6. Step 6: Final answer
    x = 397,442.81

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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.