Home / 1,040,889.12-1,561,338.54-321,221.94

Finding the Fourth Proportional to 1,040,889.12, 1,561,338.54 and 321,221.94

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Solution

The fourth proportional to 1,040,889.12, 1,561,338.54 and 321,221.94 is: 481,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,889.12 : 1,561,338.54 = 321,221.94 : x
  2. Step 2: Convert to fraction form
    1,040,889.12/1,561,338.54 = 321,221.94/x
  3. Step 3: Cross multiply
    1,040,889.12x = 1,561,338.54 × 321,221.94
  4. Step 4: Simplify right side
    1,040,889.12x = 501,536,194,815.57
  5. Step 5: Solve for x
    x = 501,536,194,815.57/1,040,889.12
  6. Step 6: Final answer
    x = 481,834.41

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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.