Home / 681,761.81-1,022,642.72-261,037.69

Finding the Fourth Proportional to 681,761.81, 1,022,642.72 and 261,037.69

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Solution

The fourth proportional to 681,761.81, 1,022,642.72 and 261,037.69 is: 391,556.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,761.81 : 1,022,642.72 = 261,037.69 : x
  2. Step 2: Convert to fraction form
    681,761.81/1,022,642.72 = 261,037.69/x
  3. Step 3: Cross multiply
    681,761.81x = 1,022,642.72 × 261,037.69
  4. Step 4: Simplify right side
    681,761.81x = 266,948,290,441.21
  5. Step 5: Solve for x
    x = 266,948,290,441.21/681,761.81
  6. Step 6: Final answer
    x = 391,556.53

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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.