Home / 686,892.30-1,029,611.25-231,049.59

Finding the Fourth Proportional to 686,892.30, 1,029,611.25 and 231,049.59

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Solution

The fourth proportional to 686,892.30, 1,029,611.25 and 231,049.59 is: 346,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,892.30 : 1,029,611.25 = 231,049.59 : x
  2. Step 2: Convert to fraction form
    686,892.30/1,029,611.25 = 231,049.59/x
  3. Step 3: Cross multiply
    686,892.30x = 1,029,611.25 × 231,049.59
  4. Step 4: Simplify right side
    686,892.30x = 237,891,257,171.89
  5. Step 5: Solve for x
    x = 237,891,257,171.89/686,892.30
  6. Step 6: Final answer
    x = 346,329.78

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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.