Home / 998,049.84-1,375,874.76-711,071.70

Finding the Fourth Proportional to 998,049.84, 1,375,874.76 and 711,071.70

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Solution

The fourth proportional to 998,049.84, 1,375,874.76 and 711,071.70 is: 980,257.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,049.84 : 1,375,874.76 = 711,071.70 : x
  2. Step 2: Convert to fraction form
    998,049.84/1,375,874.76 = 711,071.70/x
  3. Step 3: Cross multiply
    998,049.84x = 1,375,874.76 × 711,071.70
  4. Step 4: Simplify right side
    998,049.84x = 978,345,604,580.29
  5. Step 5: Solve for x
    x = 978,345,604,580.29/998,049.84
  6. Step 6: Final answer
    x = 980,257.26

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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.