Home / 457,712.20-687,183.90-268,366.60

Finding the Fourth Proportional to 457,712.20, 687,183.90 and 268,366.60

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Solution

The fourth proportional to 457,712.20, 687,183.90 and 268,366.60 is: 402,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,712.20 : 687,183.90 = 268,366.60 : x
  2. Step 2: Convert to fraction form
    457,712.20/687,183.90 = 268,366.60/x
  3. Step 3: Cross multiply
    457,712.20x = 687,183.90 × 268,366.60
  4. Step 4: Simplify right side
    457,712.20x = 184,417,206,817.74
  5. Step 5: Solve for x
    x = 184,417,206,817.74/457,712.20
  6. Step 6: Final answer
    x = 402,910.84

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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.