Home / 998,046.35-1,375,869.92-711,068.21

Finding the Fourth Proportional to 998,046.35, 1,375,869.92 and 711,068.21

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Solution

The fourth proportional to 998,046.35, 1,375,869.92 and 711,068.21 is: 980,252.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,046.35 : 1,375,869.92 = 711,068.21 : x
  2. Step 2: Convert to fraction form
    998,046.35/1,375,869.92 = 711,068.21/x
  3. Step 3: Cross multiply
    998,046.35x = 1,375,869.92 × 711,068.21
  4. Step 4: Simplify right side
    998,046.35x = 978,337,361,207.24
  5. Step 5: Solve for x
    x = 978,337,361,207.24/998,046.35
  6. Step 6: Final answer
    x = 980,252.43

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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.