Home / 1,988,265.43-2,743,708.57-1,128,712.87

Finding the Fourth Proportional to 1,988,265.43, 2,743,708.57 and 1,128,712.87

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Solution

The fourth proportional to 1,988,265.43, 2,743,708.57 and 1,128,712.87 is: 1,557,568.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,265.43 : 2,743,708.57 = 1,128,712.87 : x
  2. Step 2: Convert to fraction form
    1,988,265.43/2,743,708.57 = 1,128,712.87/x
  3. Step 3: Cross multiply
    1,988,265.43x = 2,743,708.57 × 1,128,712.87
  4. Step 4: Simplify right side
    1,988,265.43x = 3,096,859,174,488.30
  5. Step 5: Solve for x
    x = 3,096,859,174,488.30/1,988,265.43
  6. Step 6: Final answer
    x = 1,557,568.28

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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.