Home / 1,988,357.76-2,744,290.92-1,172,512.56

Finding the Fourth Proportional to 1,988,357.76, 2,744,290.92 and 1,172,512.56

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Solution

The fourth proportional to 1,988,357.76, 2,744,290.92 and 1,172,512.56 is: 1,618,277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,357.76 : 2,744,290.92 = 1,172,512.56 : x
  2. Step 2: Convert to fraction form
    1,988,357.76/2,744,290.92 = 1,172,512.56/x
  3. Step 3: Cross multiply
    1,988,357.76x = 2,744,290.92 × 1,172,512.56
  4. Step 4: Simplify right side
    1,988,357.76x = 3,217,715,571,993.96
  5. Step 5: Solve for x
    x = 3,217,715,571,993.96/1,988,357.76
  6. Step 6: Final answer
    x = 1,618,277.98

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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.