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Finding the Fourth Proportional to 3,198,662.40, 4,795,660.80 and 1,304,428.80

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Solution

The fourth proportional to 3,198,662.40, 4,795,660.80 and 1,304,428.80 is: 1,955,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198,662.40 : 4,795,660.80 = 1,304,428.80 : x
  2. Step 2: Convert to fraction form
    3,198,662.40/4,795,660.80 = 1,304,428.80/x
  3. Step 3: Cross multiply
    3,198,662.40x = 4,795,660.80 × 1,304,428.80
  4. Step 4: Simplify right side
    3,198,662.40x = 6,255,598,062,551.04
  5. Step 5: Solve for x
    x = 6,255,598,062,551.04/3,198,662.40
  6. Step 6: Final answer
    x = 1,955,691.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.