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Finding the Fourth Proportional to 667.93, 922.13 and 447.61

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Solution

The fourth proportional to 667.93, 922.13 and 447.61 is: 617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.93 : 922.13 = 447.61 : x
  2. Step 2: Convert to fraction form
    667.93/922.13 = 447.61/x
  3. Step 3: Cross multiply
    667.93x = 922.13 × 447.61
  4. Step 4: Simplify right side
    667.93x = 412,754.61
  5. Step 5: Solve for x
    x = 412,754.61/667.93
  6. Step 6: Final answer
    x = 617.96

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