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Finding the Fourth Proportional to 548,943.60, 823,415.40 and 449,216.40

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Solution

The fourth proportional to 548,943.60, 823,415.40 and 449,216.40 is: 673,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,943.60 : 823,415.40 = 449,216.40 : x
  2. Step 2: Convert to fraction form
    548,943.60/823,415.40 = 449,216.40/x
  3. Step 3: Cross multiply
    548,943.60x = 823,415.40 × 449,216.40
  4. Step 4: Simplify right side
    548,943.60x = 369,891,701,692.56
  5. Step 5: Solve for x
    x = 369,891,701,692.56/548,943.60
  6. Step 6: Final answer
    x = 673,824.60

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