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Finding the Fourth Proportional to 978,458.24, 1,466,947.15 and 641,583.70

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Solution

The fourth proportional to 978,458.24, 1,466,947.15 and 641,583.70 is: 961,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,458.24 : 1,466,947.15 = 641,583.70 : x
  2. Step 2: Convert to fraction form
    978,458.24/1,466,947.15 = 641,583.70/x
  3. Step 3: Cross multiply
    978,458.24x = 1,466,947.15 × 641,583.70
  4. Step 4: Simplify right side
    978,458.24x = 941,169,380,201.46
  5. Step 5: Solve for x
    x = 941,169,380,201.46/978,458.24
  6. Step 6: Final answer
    x = 961,890.19

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