Home / 2,165,453.75-2,988,013.35-1,198,581.72

Finding the Fourth Proportional to 2,165,453.75, 2,988,013.35 and 1,198,581.72

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Solution

The fourth proportional to 2,165,453.75, 2,988,013.35 and 1,198,581.72 is: 1,653,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,453.75 : 2,988,013.35 = 1,198,581.72 : x
  2. Step 2: Convert to fraction form
    2,165,453.75/2,988,013.35 = 1,198,581.72/x
  3. Step 3: Cross multiply
    2,165,453.75x = 2,988,013.35 × 1,198,581.72
  4. Step 4: Simplify right side
    2,165,453.75x = 3,581,378,190,523.17
  5. Step 5: Solve for x
    x = 3,581,378,190,523.17/2,165,453.75
  6. Step 6: Final answer
    x = 1,653,869.63

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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.