Home / 998,049.11-1,375,873.71-711,070.97

Finding the Fourth Proportional to 998,049.11, 1,375,873.71 and 711,070.97

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Solution

The fourth proportional to 998,049.11, 1,375,873.71 and 711,070.97 is: 980,256.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,049.11 : 1,375,873.71 = 711,070.97 : x
  2. Step 2: Convert to fraction form
    998,049.11/1,375,873.71 = 711,070.97/x
  3. Step 3: Cross multiply
    998,049.11x = 1,375,873.71 × 711,070.97
  4. Step 4: Simplify right side
    998,049.11x = 978,343,846,687.83
  5. Step 5: Solve for x
    x = 978,343,846,687.83/998,049.11
  6. Step 6: Final answer
    x = 980,256.22

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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.