Home / 682,393.73-1,023,721.81-261,636.80

Finding the Fourth Proportional to 682,393.73, 1,023,721.81 and 261,636.80

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Solution

The fourth proportional to 682,393.73, 1,023,721.81 and 261,636.80 is: 392,505.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,393.73 : 1,023,721.81 = 261,636.80 : x
  2. Step 2: Convert to fraction form
    682,393.73/1,023,721.81 = 261,636.80/x
  3. Step 3: Cross multiply
    682,393.73x = 1,023,721.81 × 261,636.80
  4. Step 4: Simplify right side
    682,393.73x = 267,843,298,458.61
  5. Step 5: Solve for x
    x = 267,843,298,458.61/682,393.73
  6. Step 6: Final answer
    x = 392,505.51

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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.