Home / 866,489.59-1,299,234.11-267,289.86

Finding the Fourth Proportional to 866,489.59, 1,299,234.11 and 267,289.86

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Solution

The fourth proportional to 866,489.59, 1,299,234.11 and 267,289.86 is: 400,780.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,489.59 : 1,299,234.11 = 267,289.86 : x
  2. Step 2: Convert to fraction form
    866,489.59/1,299,234.11 = 267,289.86/x
  3. Step 3: Cross multiply
    866,489.59x = 1,299,234.11 × 267,289.86
  4. Step 4: Simplify right side
    866,489.59x = 347,272,103,369.13
  5. Step 5: Solve for x
    x = 347,272,103,369.13/866,489.59
  6. Step 6: Final answer
    x = 400,780.47

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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.