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Finding the Fourth Proportional to 723.52, 998.40 and 461.44

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Solution

The fourth proportional to 723.52, 998.40 and 461.44 is: 636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.52 : 998.40 = 461.44 : x
  2. Step 2: Convert to fraction form
    723.52/998.40 = 461.44/x
  3. Step 3: Cross multiply
    723.52x = 998.40 × 461.44
  4. Step 4: Simplify right side
    723.52x = 460,701.70
  5. Step 5: Solve for x
    x = 460,701.70/723.52
  6. Step 6: Final answer
    x = 636.75

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