Home / 1,291,219.92-1,936,839.60-449,770.32

Finding the Fourth Proportional to 1,291,219.92, 1,936,839.60 and 449,770.32

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Solution

The fourth proportional to 1,291,219.92, 1,936,839.60 and 449,770.32 is: 674,658.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,219.92 : 1,936,839.60 = 449,770.32 : x
  2. Step 2: Convert to fraction form
    1,291,219.92/1,936,839.60 = 449,770.32/x
  3. Step 3: Cross multiply
    1,291,219.92x = 1,936,839.60 × 449,770.32
  4. Step 4: Simplify right side
    1,291,219.92x = 871,132,966,680.67
  5. Step 5: Solve for x
    x = 871,132,966,680.67/1,291,219.92
  6. Step 6: Final answer
    x = 674,658.87

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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.