Home / 686,891.30-1,029,609.75-231,048.59

Finding the Fourth Proportional to 686,891.30, 1,029,609.75 and 231,048.59

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Solution

The fourth proportional to 686,891.30, 1,029,609.75 and 231,048.59 is: 346,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,891.30 : 1,029,609.75 = 231,048.59 : x
  2. Step 2: Convert to fraction form
    686,891.30/1,029,609.75 = 231,048.59/x
  3. Step 3: Cross multiply
    686,891.30x = 1,029,609.75 × 231,048.59
  4. Step 4: Simplify right side
    686,891.30x = 237,889,876,706.14
  5. Step 5: Solve for x
    x = 237,889,876,706.14/686,891.30
  6. Step 6: Final answer
    x = 346,328.27

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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.