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Finding the Fourth Proportional to 576.02, 862.95 and 511.22

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Solution

The fourth proportional to 576.02, 862.95 and 511.22 is: 765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.02 : 862.95 = 511.22 : x
  2. Step 2: Convert to fraction form
    576.02/862.95 = 511.22/x
  3. Step 3: Cross multiply
    576.02x = 862.95 × 511.22
  4. Step 4: Simplify right side
    576.02x = 441,157.30
  5. Step 5: Solve for x
    x = 441,157.30/576.02
  6. Step 6: Final answer
    x = 765.87

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