Home / 820,876.29-1,231,504.11-259,910.79

Finding the Fourth Proportional to 820,876.29, 1,231,504.11 and 259,910.79

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Solution

The fourth proportional to 820,876.29, 1,231,504.11 and 259,910.79 is: 389,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,876.29 : 1,231,504.11 = 259,910.79 : x
  2. Step 2: Convert to fraction form
    820,876.29/1,231,504.11 = 259,910.79/x
  3. Step 3: Cross multiply
    820,876.29x = 1,231,504.11 × 259,910.79
  4. Step 4: Simplify right side
    820,876.29x = 320,081,206,118.35
  5. Step 5: Solve for x
    x = 320,081,206,118.35/820,876.29
  6. Step 6: Final answer
    x = 389,926.24

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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.