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Finding the Fourth Proportional to 529,005.80, 793,508.70 and 521,132.60

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Solution

The fourth proportional to 529,005.80, 793,508.70 and 521,132.60 is: 781,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,005.80 : 793,508.70 = 521,132.60 : x
  2. Step 2: Convert to fraction form
    529,005.80/793,508.70 = 521,132.60/x
  3. Step 3: Cross multiply
    529,005.80x = 793,508.70 × 521,132.60
  4. Step 4: Simplify right side
    529,005.80x = 413,523,251,953.62
  5. Step 5: Solve for x
    x = 413,523,251,953.62/529,005.80
  6. Step 6: Final answer
    x = 781,698.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.