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Finding the Fourth Proportional to 667,410.30, 1,001,115 and 268,050.90

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Solution

The fourth proportional to 667,410.30, 1,001,115 and 268,050.90 is: 402,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,410.30 : 1,001,115 = 268,050.90 : x
  2. Step 2: Convert to fraction form
    667,410.30/1,001,115 = 268,050.90/x
  3. Step 3: Cross multiply
    667,410.30x = 1,001,115 × 268,050.90
  4. Step 4: Simplify right side
    667,410.30x = 268,349,776,753.50
  5. Step 5: Solve for x
    x = 268,349,776,753.50/667,410.30
  6. Step 6: Final answer
    x = 402,076.17

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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.