Home / 766,237.96-1,149,354.78-345,020.68

Finding the Fourth Proportional to 766,237.96, 1,149,354.78 and 345,020.68

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Solution

The fourth proportional to 766,237.96, 1,149,354.78 and 345,020.68 is: 517,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,237.96 : 1,149,354.78 = 345,020.68 : x
  2. Step 2: Convert to fraction form
    766,237.96/1,149,354.78 = 345,020.68/x
  3. Step 3: Cross multiply
    766,237.96x = 1,149,354.78 × 345,020.68
  4. Step 4: Simplify right side
    766,237.96x = 396,551,167,756.85
  5. Step 5: Solve for x
    x = 396,551,167,756.85/766,237.96
  6. Step 6: Final answer
    x = 517,530.05

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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.