Home / 1,278,049.60-1,917,074.40-1,088,072.20

Finding the Fourth Proportional to 1,278,049.60, 1,917,074.40 and 1,088,072.20

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Solution

The fourth proportional to 1,278,049.60, 1,917,074.40 and 1,088,072.20 is: 1,632,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,049.60 : 1,917,074.40 = 1,088,072.20 : x
  2. Step 2: Convert to fraction form
    1,278,049.60/1,917,074.40 = 1,088,072.20/x
  3. Step 3: Cross multiply
    1,278,049.60x = 1,917,074.40 × 1,088,072.20
  4. Step 4: Simplify right side
    1,278,049.60x = 2,085,915,359,971.68
  5. Step 5: Solve for x
    x = 2,085,915,359,971.68/1,278,049.60
  6. Step 6: Final answer
    x = 1,632,108.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.