Home / 728,806.26-1,092,181.78-344,144.68

Finding the Fourth Proportional to 728,806.26, 1,092,181.78 and 344,144.68

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Solution

The fourth proportional to 728,806.26, 1,092,181.78 and 344,144.68 is: 515,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,806.26 : 1,092,181.78 = 344,144.68 : x
  2. Step 2: Convert to fraction form
    728,806.26/1,092,181.78 = 344,144.68/x
  3. Step 3: Cross multiply
    728,806.26x = 1,092,181.78 × 344,144.68
  4. Step 4: Simplify right side
    728,806.26x = 375,868,551,087.37
  5. Step 5: Solve for x
    x = 375,868,551,087.37/728,806.26
  6. Step 6: Final answer
    x = 515,731.78

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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.