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Finding the Fourth Proportional to 465,862.60, 698,793.90 and 318,406.60

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Solution

The fourth proportional to 465,862.60, 698,793.90 and 318,406.60 is: 477,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,862.60 : 698,793.90 = 318,406.60 : x
  2. Step 2: Convert to fraction form
    465,862.60/698,793.90 = 318,406.60/x
  3. Step 3: Cross multiply
    465,862.60x = 698,793.90 × 318,406.60
  4. Step 4: Simplify right side
    465,862.60x = 222,500,589,799.74
  5. Step 5: Solve for x
    x = 222,500,589,799.74/465,862.60
  6. Step 6: Final answer
    x = 477,609.90

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