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Finding the Fourth Proportional to 393,414.40, 590,121.60 and 251,696.80

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Solution

The fourth proportional to 393,414.40, 590,121.60 and 251,696.80 is: 377,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,414.40 : 590,121.60 = 251,696.80 : x
  2. Step 2: Convert to fraction form
    393,414.40/590,121.60 = 251,696.80/x
  3. Step 3: Cross multiply
    393,414.40x = 590,121.60 × 251,696.80
  4. Step 4: Simplify right side
    393,414.40x = 148,531,718,330.88
  5. Step 5: Solve for x
    x = 148,531,718,330.88/393,414.40
  6. Step 6: Final answer
    x = 377,545.20

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