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Finding the Fourth Proportional to 483,209.20, 724,813.80 and 448,217.20

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Solution

The fourth proportional to 483,209.20, 724,813.80 and 448,217.20 is: 672,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,209.20 : 724,813.80 = 448,217.20 : x
  2. Step 2: Convert to fraction form
    483,209.20/724,813.80 = 448,217.20/x
  3. Step 3: Cross multiply
    483,209.20x = 724,813.80 × 448,217.20
  4. Step 4: Simplify right side
    483,209.20x = 324,874,011,957.36
  5. Step 5: Solve for x
    x = 324,874,011,957.36/483,209.20
  6. Step 6: Final answer
    x = 672,325.80

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