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Finding the Fourth Proportional to 643,791.44, 888,415.26 and 357,304.16

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Solution

The fourth proportional to 643,791.44, 888,415.26 and 357,304.16 is: 493,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,791.44 : 888,415.26 = 357,304.16 : x
  2. Step 2: Convert to fraction form
    643,791.44/888,415.26 = 357,304.16/x
  3. Step 3: Cross multiply
    643,791.44x = 888,415.26 × 357,304.16
  4. Step 4: Simplify right side
    643,791.44x = 317,434,463,763.41
  5. Step 5: Solve for x
    x = 317,434,463,763.41/643,791.44
  6. Step 6: Final answer
    x = 493,070.34

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