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Finding the Fourth Proportional to 629,418.72, 943,212.24 and 389,019.36

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Solution

The fourth proportional to 629,418.72, 943,212.24 and 389,019.36 is: 582,962.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,418.72 : 943,212.24 = 389,019.36 : x
  2. Step 2: Convert to fraction form
    629,418.72/943,212.24 = 389,019.36/x
  3. Step 3: Cross multiply
    629,418.72x = 943,212.24 × 389,019.36
  4. Step 4: Simplify right side
    629,418.72x = 366,927,821,948.97
  5. Step 5: Solve for x
    x = 366,927,821,948.97/629,418.72
  6. Step 6: Final answer
    x = 582,962.99

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