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Finding the Fourth Proportional to 477,318.20, 658,686.48 and 259,520

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Solution

The fourth proportional to 477,318.20, 658,686.48 and 259,520 is: 358,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,318.20 : 658,686.48 = 259,520 : x
  2. Step 2: Convert to fraction form
    477,318.20/658,686.48 = 259,520/x
  3. Step 3: Cross multiply
    477,318.20x = 658,686.48 × 259,520
  4. Step 4: Simplify right side
    477,318.20x = 170,942,315,289.60
  5. Step 5: Solve for x
    x = 170,942,315,289.60/477,318.20
  6. Step 6: Final answer
    x = 358,130.73

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