Home / 1,988,663.28-2,743,201.12-1,253,329.44

Finding the Fourth Proportional to 1,988,663.28, 2,743,201.12 and 1,253,329.44

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Solution

The fourth proportional to 1,988,663.28, 2,743,201.12 and 1,253,329.44 is: 1,728,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,663.28 : 2,743,201.12 = 1,253,329.44 : x
  2. Step 2: Convert to fraction form
    1,988,663.28/2,743,201.12 = 1,253,329.44/x
  3. Step 3: Cross multiply
    1,988,663.28x = 2,743,201.12 × 1,253,329.44
  4. Step 4: Simplify right side
    1,988,663.28x = 3,438,134,723,536.97
  5. Step 5: Solve for x
    x = 3,438,134,723,536.97/1,988,663.28
  6. Step 6: Final answer
    x = 1,728,867.20

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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.