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Finding the Fourth Proportional to 520, 717.04 and 353.94

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Solution

The fourth proportional to 520, 717.04 and 353.94 is: 488.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520 : 717.04 = 353.94 : x
  2. Step 2: Convert to fraction form
    520/717.04 = 353.94/x
  3. Step 3: Cross multiply
    520x = 717.04 × 353.94
  4. Step 4: Simplify right side
    520x = 253,789.14
  5. Step 5: Solve for x
    x = 253,789.14/520
  6. Step 6: Final answer
    x = 488.06

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