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Finding the Fourth Proportional to 667.62, 922.05 and 447.48

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Solution

The fourth proportional to 667.62, 922.05 and 447.48 is: 618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.62 : 922.05 = 447.48 : x
  2. Step 2: Convert to fraction form
    667.62/922.05 = 447.48/x
  3. Step 3: Cross multiply
    667.62x = 922.05 × 447.48
  4. Step 4: Simplify right side
    667.62x = 412,598.93
  5. Step 5: Solve for x
    x = 412,598.93/667.62
  6. Step 6: Final answer
    x = 618.01

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