Home / 766,281.60-1,149,422.40-267,580.80

Finding the Fourth Proportional to 766,281.60, 1,149,422.40 and 267,580.80

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Solution

The fourth proportional to 766,281.60, 1,149,422.40 and 267,580.80 is: 401,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,281.60 : 1,149,422.40 = 267,580.80 : x
  2. Step 2: Convert to fraction form
    766,281.60/1,149,422.40 = 267,580.80/x
  3. Step 3: Cross multiply
    766,281.60x = 1,149,422.40 × 267,580.80
  4. Step 4: Simplify right side
    766,281.60x = 307,563,365,329.92
  5. Step 5: Solve for x
    x = 307,563,365,329.92/766,281.60
  6. Step 6: Final answer
    x = 401,371.20

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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.