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Finding the Fourth Proportional to 608.97, 913.31 and 378.03

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Solution

The fourth proportional to 608.97, 913.31 and 378.03 is: 566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.97 : 913.31 = 378.03 : x
  2. Step 2: Convert to fraction form
    608.97/913.31 = 378.03/x
  3. Step 3: Cross multiply
    608.97x = 913.31 × 378.03
  4. Step 4: Simplify right side
    608.97x = 345,256.69
  5. Step 5: Solve for x
    x = 345,256.69/608.97
  6. Step 6: Final answer
    x = 566.95

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