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Finding the Fourth Proportional to 652.24, 978 and 286.60

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Solution

The fourth proportional to 652.24, 978 and 286.60 is: 429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.24 : 978 = 286.60 : x
  2. Step 2: Convert to fraction form
    652.24/978 = 286.60/x
  3. Step 3: Cross multiply
    652.24x = 978 × 286.60
  4. Step 4: Simplify right side
    652.24x = 280,294.80
  5. Step 5: Solve for x
    x = 280,294.80/652.24
  6. Step 6: Final answer
    x = 429.74

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