Home / 998,540.73-1,377,986.38-539,653.79

Finding the Fourth Proportional to 998,540.73, 1,377,986.38 and 539,653.79

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Solution

The fourth proportional to 998,540.73, 1,377,986.38 and 539,653.79 is: 744,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,540.73 : 1,377,986.38 = 539,653.79 : x
  2. Step 2: Convert to fraction form
    998,540.73/1,377,986.38 = 539,653.79/x
  3. Step 3: Cross multiply
    998,540.73x = 1,377,986.38 × 539,653.79
  4. Step 4: Simplify right side
    998,540.73x = 743,635,574,631.21
  5. Step 5: Solve for x
    x = 743,635,574,631.21/998,540.73
  6. Step 6: Final answer
    x = 744,722.33

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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.