Home / 1,222,645.10-1,687,217.39-732,891.29

Finding the Fourth Proportional to 1,222,645.10, 1,687,217.39 and 732,891.29

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Solution

The fourth proportional to 1,222,645.10, 1,687,217.39 and 732,891.29 is: 1,011,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,645.10 : 1,687,217.39 = 732,891.29 : x
  2. Step 2: Convert to fraction form
    1,222,645.10/1,687,217.39 = 732,891.29/x
  3. Step 3: Cross multiply
    1,222,645.10x = 1,687,217.39 × 732,891.29
  4. Step 4: Simplify right side
    1,222,645.10x = 1,236,546,933,728.44
  5. Step 5: Solve for x
    x = 1,236,546,933,728.44/1,222,645.10
  6. Step 6: Final answer
    x = 1,011,370.29

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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.