Home / 686,891.80-1,029,610.51-231,049.09

Finding the Fourth Proportional to 686,891.80, 1,029,610.51 and 231,049.09

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Solution

The fourth proportional to 686,891.80, 1,029,610.51 and 231,049.09 is: 346,329.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,891.80 : 1,029,610.51 = 231,049.09 : x
  2. Step 2: Convert to fraction form
    686,891.80/1,029,610.51 = 231,049.09/x
  3. Step 3: Cross multiply
    686,891.80x = 1,029,610.51 × 231,049.09
  4. Step 4: Simplify right side
    686,891.80x = 237,890,565,086.64
  5. Step 5: Solve for x
    x = 237,890,565,086.64/686,891.80
  6. Step 6: Final answer
    x = 346,329.02

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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.