Home / 458,494.19-687,520.05-192,183.20

Finding the Fourth Proportional to 458,494.19, 687,520.05 and 192,183.20

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Solution

The fourth proportional to 458,494.19, 687,520.05 and 192,183.20 is: 288,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,494.19 : 687,520.05 = 192,183.20 : x
  2. Step 2: Convert to fraction form
    458,494.19/687,520.05 = 192,183.20/x
  3. Step 3: Cross multiply
    458,494.19x = 687,520.05 × 192,183.20
  4. Step 4: Simplify right side
    458,494.19x = 132,129,799,835.56
  5. Step 5: Solve for x
    x = 132,129,799,835.56/458,494.19
  6. Step 6: Final answer
    x = 288,182.06

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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.