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Finding the Fourth Proportional to 547,306.40, 820,959.60 and 448,891.40

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Solution

The fourth proportional to 547,306.40, 820,959.60 and 448,891.40 is: 673,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,306.40 : 820,959.60 = 448,891.40 : x
  2. Step 2: Convert to fraction form
    547,306.40/820,959.60 = 448,891.40/x
  3. Step 3: Cross multiply
    547,306.40x = 820,959.60 × 448,891.40
  4. Step 4: Simplify right side
    547,306.40x = 368,521,704,187.44
  5. Step 5: Solve for x
    x = 368,521,704,187.44/547,306.40
  6. Step 6: Final answer
    x = 673,337.10

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