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Finding the Fourth Proportional to 389,704.20, 584,556.30 and 168,520.20

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Solution

The fourth proportional to 389,704.20, 584,556.30 and 168,520.20 is: 252,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,704.20 : 584,556.30 = 168,520.20 : x
  2. Step 2: Convert to fraction form
    389,704.20/584,556.30 = 168,520.20/x
  3. Step 3: Cross multiply
    389,704.20x = 584,556.30 × 168,520.20
  4. Step 4: Simplify right side
    389,704.20x = 98,509,544,587.26
  5. Step 5: Solve for x
    x = 98,509,544,587.26/389,704.20
  6. Step 6: Final answer
    x = 252,780.30

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