Home / 1,040,166.30-1,560,249.45-685,580.70

Finding the Fourth Proportional to 1,040,166.30, 1,560,249.45 and 685,580.70

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Solution

The fourth proportional to 1,040,166.30, 1,560,249.45 and 685,580.70 is: 1,028,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,166.30 : 1,560,249.45 = 685,580.70 : x
  2. Step 2: Convert to fraction form
    1,040,166.30/1,560,249.45 = 685,580.70/x
  3. Step 3: Cross multiply
    1,040,166.30x = 1,560,249.45 × 685,580.70
  4. Step 4: Simplify right side
    1,040,166.30x = 1,069,676,910,105.61
  5. Step 5: Solve for x
    x = 1,069,676,910,105.61/1,040,166.30
  6. Step 6: Final answer
    x = 1,028,371.05

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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.