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Finding the Fourth Proportional to 868,756.43, 1,198,891.89 and 481,576.03

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Solution

The fourth proportional to 868,756.43, 1,198,891.89 and 481,576.03 is: 664,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,756.43 : 1,198,891.89 = 481,576.03 : x
  2. Step 2: Convert to fraction form
    868,756.43/1,198,891.89 = 481,576.03/x
  3. Step 3: Cross multiply
    868,756.43x = 1,198,891.89 × 481,576.03
  4. Step 4: Simplify right side
    868,756.43x = 577,357,596,785.40
  5. Step 5: Solve for x
    x = 577,357,596,785.40/868,756.43
  6. Step 6: Final answer
    x = 664,579.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.