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Finding the Fourth Proportional to 561,680.30, 842,520.45 and 532,811.90

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Solution

The fourth proportional to 561,680.30, 842,520.45 and 532,811.90 is: 799,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,680.30 : 842,520.45 = 532,811.90 : x
  2. Step 2: Convert to fraction form
    561,680.30/842,520.45 = 532,811.90/x
  3. Step 3: Cross multiply
    561,680.30x = 842,520.45 × 532,811.90
  4. Step 4: Simplify right side
    561,680.30x = 448,904,921,753.36
  5. Step 5: Solve for x
    x = 448,904,921,753.36/561,680.30
  6. Step 6: Final answer
    x = 799,217.85

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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.