Home / 2,138,041-2,950,544.22-1,220,251.72

Finding the Fourth Proportional to 2,138,041, 2,950,544.22 and 1,220,251.72

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Solution

The fourth proportional to 2,138,041, 2,950,544.22 and 1,220,251.72 is: 1,683,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,041 : 2,950,544.22 = 1,220,251.72 : x
  2. Step 2: Convert to fraction form
    2,138,041/2,950,544.22 = 1,220,251.72/x
  3. Step 3: Cross multiply
    2,138,041x = 2,950,544.22 × 1,220,251.72
  4. Step 4: Simplify right side
    2,138,041x = 3,600,406,659,391.06
  5. Step 5: Solve for x
    x = 3,600,406,659,391.06/2,138,041
  6. Step 6: Final answer
    x = 1,683,974.56

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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.