Home / 1,204,516.45-1,662,371.57-721,081.45

Finding the Fourth Proportional to 1,204,516.45, 1,662,371.57 and 721,081.45

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Solution

The fourth proportional to 1,204,516.45, 1,662,371.57 and 721,081.45 is: 995,175.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,516.45 : 1,662,371.57 = 721,081.45 : x
  2. Step 2: Convert to fraction form
    1,204,516.45/1,662,371.57 = 721,081.45/x
  3. Step 3: Cross multiply
    1,204,516.45x = 1,662,371.57 × 721,081.45
  4. Step 4: Simplify right side
    1,204,516.45x = 1,198,705,290,217.11
  5. Step 5: Solve for x
    x = 1,198,705,290,217.11/1,204,516.45
  6. Step 6: Final answer
    x = 995,175.53

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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.