Home / 681,134.05-1,021,785.90-231,820.39

Finding the Fourth Proportional to 681,134.05, 1,021,785.90 and 231,820.39

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Solution

The fourth proportional to 681,134.05, 1,021,785.90 and 231,820.39 is: 347,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,134.05 : 1,021,785.90 = 231,820.39 : x
  2. Step 2: Convert to fraction form
    681,134.05/1,021,785.90 = 231,820.39/x
  3. Step 3: Cross multiply
    681,134.05x = 1,021,785.90 × 231,820.39
  4. Step 4: Simplify right side
    681,134.05x = 236,870,804,675.40
  5. Step 5: Solve for x
    x = 236,870,804,675.40/681,134.05
  6. Step 6: Final answer
    x = 347,759.45

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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.