Home / 1,206,195.52-1,806,403.20-672,390.40

Finding the Fourth Proportional to 1,206,195.52, 1,806,403.20 and 672,390.40

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Solution

The fourth proportional to 1,206,195.52, 1,806,403.20 and 672,390.40 is: 1,006,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,195.52 : 1,806,403.20 = 672,390.40 : x
  2. Step 2: Convert to fraction form
    1,206,195.52/1,806,403.20 = 672,390.40/x
  3. Step 3: Cross multiply
    1,206,195.52x = 1,806,403.20 × 672,390.40
  4. Step 4: Simplify right side
    1,206,195.52x = 1,214,608,170,209.28
  5. Step 5: Solve for x
    x = 1,214,608,170,209.28/1,206,195.52
  6. Step 6: Final answer
    x = 1,006,974.53

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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.