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Finding the Fourth Proportional to 392,682.30, 589,023.45 and 363,813.90

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Solution

The fourth proportional to 392,682.30, 589,023.45 and 363,813.90 is: 545,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,682.30 : 589,023.45 = 363,813.90 : x
  2. Step 2: Convert to fraction form
    392,682.30/589,023.45 = 363,813.90/x
  3. Step 3: Cross multiply
    392,682.30x = 589,023.45 × 363,813.90
  4. Step 4: Simplify right side
    392,682.30x = 214,294,918,535.96
  5. Step 5: Solve for x
    x = 214,294,918,535.96/392,682.30
  6. Step 6: Final answer
    x = 545,720.85

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