Home / 682,590.78-1,023,510.33-261,909.18

Finding the Fourth Proportional to 682,590.78, 1,023,510.33 and 261,909.18

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Solution

The fourth proportional to 682,590.78, 1,023,510.33 and 261,909.18 is: 392,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,590.78 : 1,023,510.33 = 261,909.18 : x
  2. Step 2: Convert to fraction form
    682,590.78/1,023,510.33 = 261,909.18/x
  3. Step 3: Cross multiply
    682,590.78x = 1,023,510.33 × 261,909.18
  4. Step 4: Simplify right side
    682,590.78x = 268,066,751,251.83
  5. Step 5: Solve for x
    x = 268,066,751,251.83/682,590.78
  6. Step 6: Final answer
    x = 392,719.56

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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.