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Finding the Fourth Proportional to 643,696.26, 965,545.20 and 222,972.09

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Solution

The fourth proportional to 643,696.26, 965,545.20 and 222,972.09 is: 334,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,696.26 : 965,545.20 = 222,972.09 : x
  2. Step 2: Convert to fraction form
    643,696.26/965,545.20 = 222,972.09/x
  3. Step 3: Cross multiply
    643,696.26x = 965,545.20 × 222,972.09
  4. Step 4: Simplify right side
    643,696.26x = 215,289,631,233.47
  5. Step 5: Solve for x
    x = 215,289,631,233.47/643,696.26
  6. Step 6: Final answer
    x = 334,458.42

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