Home / 756,073.20-1,134,109.80-667,499.70

Finding the Fourth Proportional to 756,073.20, 1,134,109.80 and 667,499.70

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Solution

The fourth proportional to 756,073.20, 1,134,109.80 and 667,499.70 is: 1,001,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,073.20 : 1,134,109.80 = 667,499.70 : x
  2. Step 2: Convert to fraction form
    756,073.20/1,134,109.80 = 667,499.70/x
  3. Step 3: Cross multiply
    756,073.20x = 1,134,109.80 × 667,499.70
  4. Step 4: Simplify right side
    756,073.20x = 757,017,951,267.06
  5. Step 5: Solve for x
    x = 757,017,951,267.06/756,073.20
  6. Step 6: Final answer
    x = 1,001,249.55

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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.