Home / 1,378,122.29-2,067,176.26-353,447.78

Finding the Fourth Proportional to 1,378,122.29, 2,067,176.26 and 353,447.78

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Solution

The fourth proportional to 1,378,122.29, 2,067,176.26 and 353,447.78 is: 530,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,122.29 : 2,067,176.26 = 353,447.78 : x
  2. Step 2: Convert to fraction form
    1,378,122.29/2,067,176.26 = 353,447.78/x
  3. Step 3: Cross multiply
    1,378,122.29x = 2,067,176.26 × 353,447.78
  4. Step 4: Simplify right side
    1,378,122.29x = 730,638,858,198.46
  5. Step 5: Solve for x
    x = 730,638,858,198.46/1,378,122.29
  6. Step 6: Final answer
    x = 530,169.83

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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.