Home / 458,618.86-687,226.92-192,234.16

Finding the Fourth Proportional to 458,618.86, 687,226.92 and 192,234.16

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Solution

The fourth proportional to 458,618.86, 687,226.92 and 192,234.16 is: 288,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,618.86 : 687,226.92 = 192,234.16 : x
  2. Step 2: Convert to fraction form
    458,618.86/687,226.92 = 192,234.16/x
  3. Step 3: Cross multiply
    458,618.86x = 687,226.92 × 192,234.16
  4. Step 4: Simplify right side
    458,618.86x = 132,108,489,695.59
  5. Step 5: Solve for x
    x = 132,108,489,695.59/458,618.86
  6. Step 6: Final answer
    x = 288,057.25

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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.