Home / 749,251.91-1,123,877.87-680,607.45

Finding the Fourth Proportional to 749,251.91, 1,123,877.87 and 680,607.45

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Solution

The fourth proportional to 749,251.91, 1,123,877.87 and 680,607.45 is: 1,020,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,251.91 : 1,123,877.87 = 680,607.45 : x
  2. Step 2: Convert to fraction form
    749,251.91/1,123,877.87 = 680,607.45/x
  3. Step 3: Cross multiply
    749,251.91x = 1,123,877.87 × 680,607.45
  4. Step 4: Simplify right side
    749,251.91x = 764,919,650,361.37
  5. Step 5: Solve for x
    x = 764,919,650,361.37/749,251.91
  6. Step 6: Final answer
    x = 1,020,911.18

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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.