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Finding the Fourth Proportional to 483,618.75, 667,340.88 and 279,638.80

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Solution

The fourth proportional to 483,618.75, 667,340.88 and 279,638.80 is: 385,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,618.75 : 667,340.88 = 279,638.80 : x
  2. Step 2: Convert to fraction form
    483,618.75/667,340.88 = 279,638.80/x
  3. Step 3: Cross multiply
    483,618.75x = 667,340.88 × 279,638.80
  4. Step 4: Simplify right side
    483,618.75x = 186,614,405,241.59
  5. Step 5: Solve for x
    x = 186,614,405,241.59/483,618.75
  6. Step 6: Final answer
    x = 385,870.91

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