Home / 748,722.20-1,122,427.20-449,321.90

Finding the Fourth Proportional to 748,722.20, 1,122,427.20 and 449,321.90

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Solution

The fourth proportional to 748,722.20, 1,122,427.20 and 449,321.90 is: 673,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,722.20 : 1,122,427.20 = 449,321.90 : x
  2. Step 2: Convert to fraction form
    748,722.20/1,122,427.20 = 449,321.90/x
  3. Step 3: Cross multiply
    748,722.20x = 1,122,427.20 × 449,321.90
  4. Step 4: Simplify right side
    748,722.20x = 504,331,122,115.68
  5. Step 5: Solve for x
    x = 504,331,122,115.68/748,722.20
  6. Step 6: Final answer
    x = 673,589.11

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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.