Home / 682,418.73-1,022,849.72-426,369.03

Finding the Fourth Proportional to 682,418.73, 1,022,849.72 and 426,369.03

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Solution

The fourth proportional to 682,418.73, 1,022,849.72 and 426,369.03 is: 639,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,418.73 : 1,022,849.72 = 426,369.03 : x
  2. Step 2: Convert to fraction form
    682,418.73/1,022,849.72 = 426,369.03/x
  3. Step 3: Cross multiply
    682,418.73x = 1,022,849.72 × 426,369.03
  4. Step 4: Simplify right side
    682,418.73x = 436,111,440,820.33
  5. Step 5: Solve for x
    x = 436,111,440,820.33/682,418.73
  6. Step 6: Final answer
    x = 639,067.22

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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.