Home / 766,297.60-1,149,446.40-267,596.80

Finding the Fourth Proportional to 766,297.60, 1,149,446.40 and 267,596.80

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Solution

The fourth proportional to 766,297.60, 1,149,446.40 and 267,596.80 is: 401,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,297.60 : 1,149,446.40 = 267,596.80 : x
  2. Step 2: Convert to fraction form
    766,297.60/1,149,446.40 = 267,596.80/x
  3. Step 3: Cross multiply
    766,297.60x = 1,149,446.40 × 267,596.80
  4. Step 4: Simplify right side
    766,297.60x = 307,588,178,411.52
  5. Step 5: Solve for x
    x = 307,588,178,411.52/766,297.60
  6. Step 6: Final answer
    x = 401,395.20

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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.