Home / 682,540.30-1,023,013.50-513,517.78

Finding the Fourth Proportional to 682,540.30, 1,023,013.50 and 513,517.78

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Solution

The fourth proportional to 682,540.30, 1,023,013.50 and 513,517.78 is: 769,677.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,540.30 : 1,023,013.50 = 513,517.78 : x
  2. Step 2: Convert to fraction form
    682,540.30/1,023,013.50 = 513,517.78/x
  3. Step 3: Cross multiply
    682,540.30x = 1,023,013.50 × 513,517.78
  4. Step 4: Simplify right side
    682,540.30x = 525,335,621,430.03
  5. Step 5: Solve for x
    x = 525,335,621,430.03/682,540.30
  6. Step 6: Final answer
    x = 769,677.07

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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.