Home / 766,820.70-1,150,231.05-205,911.90

Finding the Fourth Proportional to 766,820.70, 1,150,231.05 and 205,911.90

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Solution

The fourth proportional to 766,820.70, 1,150,231.05 and 205,911.90 is: 308,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,820.70 : 1,150,231.05 = 205,911.90 : x
  2. Step 2: Convert to fraction form
    766,820.70/1,150,231.05 = 205,911.90/x
  3. Step 3: Cross multiply
    766,820.70x = 1,150,231.05 × 205,911.90
  4. Step 4: Simplify right side
    766,820.70x = 236,846,260,944.50
  5. Step 5: Solve for x
    x = 236,846,260,944.50/766,820.70
  6. Step 6: Final answer
    x = 308,867.85

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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.