Home / 682,393.11-1,023,720.87-261,636.18

Finding the Fourth Proportional to 682,393.11, 1,023,720.87 and 261,636.18

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Solution

The fourth proportional to 682,393.11, 1,023,720.87 and 261,636.18 is: 392,504.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,393.11 : 1,023,720.87 = 261,636.18 : x
  2. Step 2: Convert to fraction form
    682,393.11/1,023,720.87 = 261,636.18/x
  3. Step 3: Cross multiply
    682,393.11x = 1,023,720.87 × 261,636.18
  4. Step 4: Simplify right side
    682,393.11x = 267,842,417,813.08
  5. Step 5: Solve for x
    x = 267,842,417,813.08/682,393.11
  6. Step 6: Final answer
    x = 392,504.58

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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.