Home / 3,121,251.30-4,682,006.55-991,275.30

Finding the Fourth Proportional to 3,121,251.30, 4,682,006.55 and 991,275.30

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Solution

The fourth proportional to 3,121,251.30, 4,682,006.55 and 991,275.30 is: 1,486,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,251.30 : 4,682,006.55 = 991,275.30 : x
  2. Step 2: Convert to fraction form
    3,121,251.30/4,682,006.55 = 991,275.30/x
  3. Step 3: Cross multiply
    3,121,251.30x = 4,682,006.55 × 991,275.30
  4. Step 4: Simplify right side
    3,121,251.30x = 4,641,157,447,453.22
  5. Step 5: Solve for x
    x = 4,641,157,447,453.22/3,121,251.30
  6. Step 6: Final answer
    x = 1,486,954.11

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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.