Home / 766,286.60-1,149,429.90-267,585.80

Finding the Fourth Proportional to 766,286.60, 1,149,429.90 and 267,585.80

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Solution

The fourth proportional to 766,286.60, 1,149,429.90 and 267,585.80 is: 401,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,286.60 : 1,149,429.90 = 267,585.80 : x
  2. Step 2: Convert to fraction form
    766,286.60/1,149,429.90 = 267,585.80/x
  3. Step 3: Cross multiply
    766,286.60x = 1,149,429.90 × 267,585.80
  4. Step 4: Simplify right side
    766,286.60x = 307,571,119,335.42
  5. Step 5: Solve for x
    x = 307,571,119,335.42/766,286.60
  6. Step 6: Final answer
    x = 401,378.70

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Double scale
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Similar ratio
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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.