Home / 766,236.96-1,149,353.28-345,019.68

Finding the Fourth Proportional to 766,236.96, 1,149,353.28 and 345,019.68

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Solution

The fourth proportional to 766,236.96, 1,149,353.28 and 345,019.68 is: 517,528.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,236.96 : 1,149,353.28 = 345,019.68 : x
  2. Step 2: Convert to fraction form
    766,236.96/1,149,353.28 = 345,019.68/x
  3. Step 3: Cross multiply
    766,236.96x = 1,149,353.28 × 345,019.68
  4. Step 4: Simplify right side
    766,236.96x = 396,549,500,872.55
  5. Step 5: Solve for x
    x = 396,549,500,872.55/766,236.96
  6. Step 6: Final answer
    x = 517,528.55

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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.