Home / 866,490.59-1,299,235.61-267,290.86

Finding the Fourth Proportional to 866,490.59, 1,299,235.61 and 267,290.86

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Solution

The fourth proportional to 866,490.59, 1,299,235.61 and 267,290.86 is: 400,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,490.59 : 1,299,235.61 = 267,290.86 : x
  2. Step 2: Convert to fraction form
    866,490.59/1,299,235.61 = 267,290.86/x
  3. Step 3: Cross multiply
    866,490.59x = 1,299,235.61 × 267,290.86
  4. Step 4: Simplify right side
    866,490.59x = 347,273,803,539.53
  5. Step 5: Solve for x
    x = 347,273,803,539.53/866,490.59
  6. Step 6: Final answer
    x = 400,781.97

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1.5x scale

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.