Home / 439,269.30-658,214.78-261,679.23

Finding the Fourth Proportional to 439,269.30, 658,214.78 and 261,679.23

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Solution

The fourth proportional to 439,269.30, 658,214.78 and 261,679.23 is: 392,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,269.30 : 658,214.78 = 261,679.23 : x
  2. Step 2: Convert to fraction form
    439,269.30/658,214.78 = 261,679.23/x
  3. Step 3: Cross multiply
    439,269.30x = 658,214.78 × 261,679.23
  4. Step 4: Simplify right side
    439,269.30x = 172,241,135,496.62
  5. Step 5: Solve for x
    x = 172,241,135,496.62/439,269.30
  6. Step 6: Final answer
    x = 392,108.29

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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.