Home / 458,620.86-687,229.92-192,236.16

Finding the Fourth Proportional to 458,620.86, 687,229.92 and 192,236.16

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Solution

The fourth proportional to 458,620.86, 687,229.92 and 192,236.16 is: 288,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,620.86 : 687,229.92 = 192,236.16 : x
  2. Step 2: Convert to fraction form
    458,620.86/687,229.92 = 192,236.16/x
  3. Step 3: Cross multiply
    458,620.86x = 687,229.92 × 192,236.16
  4. Step 4: Simplify right side
    458,620.86x = 132,110,440,857.91
  5. Step 5: Solve for x
    x = 132,110,440,857.91/458,620.86
  6. Step 6: Final answer
    x = 288,060.25

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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.