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Finding the Fourth Proportional to 392,458.26, 588,775.14 and 143,140.26

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Solution

The fourth proportional to 392,458.26, 588,775.14 and 143,140.26 is: 214,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,458.26 : 588,775.14 = 143,140.26 : x
  2. Step 2: Convert to fraction form
    392,458.26/588,775.14 = 143,140.26/x
  3. Step 3: Cross multiply
    392,458.26x = 588,775.14 × 143,140.26
  4. Step 4: Simplify right side
    392,458.26x = 84,277,426,621.14
  5. Step 5: Solve for x
    x = 84,277,426,621.14/392,458.26
  6. Step 6: Final answer
    x = 214,742.39

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