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Finding the Fourth Proportional to 643,440.16, 888,053.52 and 357,052.42

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Solution

The fourth proportional to 643,440.16, 888,053.52 and 357,052.42 is: 492,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,440.16 : 888,053.52 = 357,052.42 : x
  2. Step 2: Convert to fraction form
    643,440.16/888,053.52 = 357,052.42/x
  3. Step 3: Cross multiply
    643,440.16x = 888,053.52 × 357,052.42
  4. Step 4: Simplify right side
    643,440.16x = 317,081,658,405.52
  5. Step 5: Solve for x
    x = 317,081,658,405.52/643,440.16
  6. Step 6: Final answer
    x = 492,791.22

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