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Finding the Fourth Proportional to 524.92, 787.75 and 423.43

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Solution

The fourth proportional to 524.92, 787.75 and 423.43 is: 635.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.92 : 787.75 = 423.43 : x
  2. Step 2: Convert to fraction form
    524.92/787.75 = 423.43/x
  3. Step 3: Cross multiply
    524.92x = 787.75 × 423.43
  4. Step 4: Simplify right side
    524.92x = 333,556.98
  5. Step 5: Solve for x
    x = 333,556.98/524.92
  6. Step 6: Final answer
    x = 635.44

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