Home / 766,003.40-1,149,005.10-205,037.90

Finding the Fourth Proportional to 766,003.40, 1,149,005.10 and 205,037.90

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Solution

The fourth proportional to 766,003.40, 1,149,005.10 and 205,037.90 is: 307,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,003.40 : 1,149,005.10 = 205,037.90 : x
  2. Step 2: Convert to fraction form
    766,003.40/1,149,005.10 = 205,037.90/x
  3. Step 3: Cross multiply
    766,003.40x = 1,149,005.10 × 205,037.90
  4. Step 4: Simplify right side
    766,003.40x = 235,589,592,793.29
  5. Step 5: Solve for x
    x = 235,589,592,793.29/766,003.40
  6. Step 6: Final answer
    x = 307,556.85

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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.