Home / 681,768.54-1,022,652.78-208,453.86

Finding the Fourth Proportional to 681,768.54, 1,022,652.78 and 208,453.86

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Solution

The fourth proportional to 681,768.54, 1,022,652.78 and 208,453.86 is: 312,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,768.54 : 1,022,652.78 = 208,453.86 : x
  2. Step 2: Convert to fraction form
    681,768.54/1,022,652.78 = 208,453.86/x
  3. Step 3: Cross multiply
    681,768.54x = 1,022,652.78 × 208,453.86
  4. Step 4: Simplify right side
    681,768.54x = 213,175,919,430.73
  5. Step 5: Solve for x
    x = 213,175,919,430.73/681,768.54
  6. Step 6: Final answer
    x = 312,680.78

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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.