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Finding the Fourth Proportional to 420,954, 580,956.48 and 229,996.14

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Solution

The fourth proportional to 420,954, 580,956.48 and 229,996.14 is: 317,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,954 : 580,956.48 = 229,996.14 : x
  2. Step 2: Convert to fraction form
    420,954/580,956.48 = 229,996.14/x
  3. Step 3: Cross multiply
    420,954x = 580,956.48 × 229,996.14
  4. Step 4: Simplify right side
    420,954x = 133,617,747,907.99
  5. Step 5: Solve for x
    x = 133,617,747,907.99/420,954
  6. Step 6: Final answer
    x = 317,416.51

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