Home / 1,986,178-2,740,902.60-1,080,744.40

Finding the Fourth Proportional to 1,986,178, 2,740,902.60 and 1,080,744.40

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Solution

The fourth proportional to 1,986,178, 2,740,902.60 and 1,080,744.40 is: 1,491,414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,178 : 2,740,902.60 = 1,080,744.40 : x
  2. Step 2: Convert to fraction form
    1,986,178/2,740,902.60 = 1,080,744.40/x
  3. Step 3: Cross multiply
    1,986,178x = 2,740,902.60 × 1,080,744.40
  4. Step 4: Simplify right side
    1,986,178x = 2,962,215,135,895.44
  5. Step 5: Solve for x
    x = 2,962,215,135,895.44/1,986,178
  6. Step 6: Final answer
    x = 1,491,414.74

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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.