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Finding the Fourth Proportional to 474.59, 654.95 and 288.04

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Solution

The fourth proportional to 474.59, 654.95 and 288.04 is: 397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.59 : 654.95 = 288.04 : x
  2. Step 2: Convert to fraction form
    474.59/654.95 = 288.04/x
  3. Step 3: Cross multiply
    474.59x = 654.95 × 288.04
  4. Step 4: Simplify right side
    474.59x = 188,651.80
  5. Step 5: Solve for x
    x = 188,651.80/474.59
  6. Step 6: Final answer
    x = 397.50

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