Home / 457,807.30-687,002.55-268,267.30

Finding the Fourth Proportional to 457,807.30, 687,002.55 and 268,267.30

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Solution

The fourth proportional to 457,807.30, 687,002.55 and 268,267.30 is: 402,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,807.30 : 687,002.55 = 268,267.30 : x
  2. Step 2: Convert to fraction form
    457,807.30/687,002.55 = 268,267.30/x
  3. Step 3: Cross multiply
    457,807.30x = 687,002.55 × 268,267.30
  4. Step 4: Simplify right side
    457,807.30x = 184,300,319,181.62
  5. Step 5: Solve for x
    x = 184,300,319,181.62/457,807.30
  6. Step 6: Final answer
    x = 402,571.82

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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.