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Finding the Fourth Proportional to 453.92, 680.88 and 425.44

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Solution

The fourth proportional to 453.92, 680.88 and 425.44 is: 638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.92 : 680.88 = 425.44 : x
  2. Step 2: Convert to fraction form
    453.92/680.88 = 425.44/x
  3. Step 3: Cross multiply
    453.92x = 680.88 × 425.44
  4. Step 4: Simplify right side
    453.92x = 289,673.59
  5. Step 5: Solve for x
    x = 289,673.59/453.92
  6. Step 6: Final answer
    x = 638.16

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