Home / 1,989,381.38-2,745,346.33-1,083,963.38

Finding the Fourth Proportional to 1,989,381.38, 2,745,346.33 and 1,083,963.38

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Solution

The fourth proportional to 1,989,381.38, 2,745,346.33 and 1,083,963.38 is: 1,495,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,381.38 : 2,745,346.33 = 1,083,963.38 : x
  2. Step 2: Convert to fraction form
    1,989,381.38/2,745,346.33 = 1,083,963.38/x
  3. Step 3: Cross multiply
    1,989,381.38x = 2,745,346.33 × 1,083,963.38
  4. Step 4: Simplify right side
    1,989,381.38x = 2,975,854,874,765.62
  5. Step 5: Solve for x
    x = 2,975,854,874,765.62/1,989,381.38
  6. Step 6: Final answer
    x = 1,495,869.48

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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.