Home / 729,854.20-1,094,781.30-688,519.90

Finding the Fourth Proportional to 729,854.20, 1,094,781.30 and 688,519.90

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Solution

The fourth proportional to 729,854.20, 1,094,781.30 and 688,519.90 is: 1,032,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,854.20 : 1,094,781.30 = 688,519.90 : x
  2. Step 2: Convert to fraction form
    729,854.20/1,094,781.30 = 688,519.90/x
  3. Step 3: Cross multiply
    729,854.20x = 1,094,781.30 × 688,519.90
  4. Step 4: Simplify right side
    729,854.20x = 753,778,711,197.87
  5. Step 5: Solve for x
    x = 753,778,711,197.87/729,854.20
  6. Step 6: Final answer
    x = 1,032,779.85

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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.