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Finding the Fourth Proportional to 970,757.80, 1,456,136.70 and 260,857.60

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Solution

The fourth proportional to 970,757.80, 1,456,136.70 and 260,857.60 is: 391,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,757.80 : 1,456,136.70 = 260,857.60 : x
  2. Step 2: Convert to fraction form
    970,757.80/1,456,136.70 = 260,857.60/x
  3. Step 3: Cross multiply
    970,757.80x = 1,456,136.70 × 260,857.60
  4. Step 4: Simplify right side
    970,757.80x = 379,844,324,833.92
  5. Step 5: Solve for x
    x = 379,844,324,833.92/970,757.80
  6. Step 6: Final answer
    x = 391,286.40

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