Home / 1,338,606.80-2,002,078.20-1,197,472.40

Finding the Fourth Proportional to 1,338,606.80, 2,002,078.20 and 1,197,472.40

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Solution

The fourth proportional to 1,338,606.80, 2,002,078.20 and 1,197,472.40 is: 1,790,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,606.80 : 2,002,078.20 = 1,197,472.40 : x
  2. Step 2: Convert to fraction form
    1,338,606.80/2,002,078.20 = 1,197,472.40/x
  3. Step 3: Cross multiply
    1,338,606.80x = 2,002,078.20 × 1,197,472.40
  4. Step 4: Simplify right side
    1,338,606.80x = 2,397,433,387,141.68
  5. Step 5: Solve for x
    x = 2,397,433,387,141.68/1,338,606.80
  6. Step 6: Final answer
    x = 1,790,991.49

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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.