Home / 1,988,872.90-2,744,572.02-1,215,798.49

Finding the Fourth Proportional to 1,988,872.90, 2,744,572.02 and 1,215,798.49

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Solution

The fourth proportional to 1,988,872.90, 2,744,572.02 and 1,215,798.49 is: 1,677,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,872.90 : 2,744,572.02 = 1,215,798.49 : x
  2. Step 2: Convert to fraction form
    1,988,872.90/2,744,572.02 = 1,215,798.49/x
  3. Step 3: Cross multiply
    1,988,872.90x = 2,744,572.02 × 1,215,798.49
  4. Step 4: Simplify right side
    1,988,872.90x = 3,336,846,517,612.25
  5. Step 5: Solve for x
    x = 3,336,846,517,612.25/1,988,872.90
  6. Step 6: Final answer
    x = 1,677,757.55

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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.