Home / 663,772.40-993,034.20-576,000.80

Finding the Fourth Proportional to 663,772.40, 993,034.20 and 576,000.80

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Solution

The fourth proportional to 663,772.40, 993,034.20 and 576,000.80 is: 861,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,772.40 : 993,034.20 = 576,000.80 : x
  2. Step 2: Convert to fraction form
    663,772.40/993,034.20 = 576,000.80/x
  3. Step 3: Cross multiply
    663,772.40x = 993,034.20 × 576,000.80
  4. Step 4: Simplify right side
    663,772.40x = 571,988,493,627.36
  5. Step 5: Solve for x
    x = 571,988,493,627.36/663,772.40
  6. Step 6: Final answer
    x = 861,723.83

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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.