Home / 1,998,290.41-2,757,638.81-1,080,517.35

Finding the Fourth Proportional to 1,998,290.41, 2,757,638.81 and 1,080,517.35

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Solution

The fourth proportional to 1,998,290.41, 2,757,638.81 and 1,080,517.35 is: 1,491,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,290.41 : 2,757,638.81 = 1,080,517.35 : x
  2. Step 2: Convert to fraction form
    1,998,290.41/2,757,638.81 = 1,080,517.35/x
  3. Step 3: Cross multiply
    1,998,290.41x = 2,757,638.81 × 1,080,517.35
  4. Step 4: Simplify right side
    1,998,290.41x = 2,979,676,592,280.79
  5. Step 5: Solve for x
    x = 2,979,676,592,280.79/1,998,290.41
  6. Step 6: Final answer
    x = 1,491,112.89

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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.