Home / 686,759.22-1,030,286.46-231,395.70

Finding the Fourth Proportional to 686,759.22, 1,030,286.46 and 231,395.70

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Solution

The fourth proportional to 686,759.22, 1,030,286.46 and 231,395.70 is: 347,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,759.22 : 1,030,286.46 = 231,395.70 : x
  2. Step 2: Convert to fraction form
    686,759.22/1,030,286.46 = 231,395.70/x
  3. Step 3: Cross multiply
    686,759.22x = 1,030,286.46 × 231,395.70
  4. Step 4: Simplify right side
    686,759.22x = 238,403,856,612.22
  5. Step 5: Solve for x
    x = 238,403,856,612.22/686,759.22
  6. Step 6: Final answer
    x = 347,143.29

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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.