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Finding the Fourth Proportional to 667,008.12, 1,000,257 and 329,933.16

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Solution

The fourth proportional to 667,008.12, 1,000,257 and 329,933.16 is: 494,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,008.12 : 1,000,257 = 329,933.16 : x
  2. Step 2: Convert to fraction form
    667,008.12/1,000,257 = 329,933.16/x
  3. Step 3: Cross multiply
    667,008.12x = 1,000,257 × 329,933.16
  4. Step 4: Simplify right side
    667,008.12x = 330,017,952,822.12
  5. Step 5: Solve for x
    x = 330,017,952,822.12/667,008.12
  6. Step 6: Final answer
    x = 494,773.52

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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.