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Finding the Fourth Proportional to 529,337.33, 730,489.97 and 287,619.91

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Solution

The fourth proportional to 529,337.33, 730,489.97 and 287,619.91 is: 396,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,337.33 : 730,489.97 = 287,619.91 : x
  2. Step 2: Convert to fraction form
    529,337.33/730,489.97 = 287,619.91/x
  3. Step 3: Cross multiply
    529,337.33x = 730,489.97 × 287,619.91
  4. Step 4: Simplify right side
    529,337.33x = 210,103,456,162.98
  5. Step 5: Solve for x
    x = 210,103,456,162.98/529,337.33
  6. Step 6: Final answer
    x = 396,917.89

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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.