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Finding the Fourth Proportional to 667,978.34, 1,001,753.67 and 218,577.38

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Solution

The fourth proportional to 667,978.34, 1,001,753.67 and 218,577.38 is: 327,796.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,978.34 : 1,001,753.67 = 218,577.38 : x
  2. Step 2: Convert to fraction form
    667,978.34/1,001,753.67 = 218,577.38/x
  3. Step 3: Cross multiply
    667,978.34x = 1,001,753.67 × 218,577.38
  4. Step 4: Simplify right side
    667,978.34x = 218,960,692,593.99
  5. Step 5: Solve for x
    x = 218,960,692,593.99/667,978.34
  6. Step 6: Final answer
    x = 327,796.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.