Home / 682,150.40-1,022,642.16-261,728

Finding the Fourth Proportional to 682,150.40, 1,022,642.16 and 261,728

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Solution

The fourth proportional to 682,150.40, 1,022,642.16 and 261,728 is: 392,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,150.40 : 1,022,642.16 = 261,728 : x
  2. Step 2: Convert to fraction form
    682,150.40/1,022,642.16 = 261,728/x
  3. Step 3: Cross multiply
    682,150.40x = 1,022,642.16 × 261,728
  4. Step 4: Simplify right side
    682,150.40x = 267,654,087,252.48
  5. Step 5: Solve for x
    x = 267,654,087,252.48/682,150.40
  6. Step 6: Final answer
    x = 392,368.15

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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.