Home / 681,851.40-1,022,613.08-208,540.86

Finding the Fourth Proportional to 681,851.40, 1,022,613.08 and 208,540.86

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Solution

The fourth proportional to 681,851.40, 1,022,613.08 and 208,540.86 is: 312,761.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,851.40 : 1,022,613.08 = 208,540.86 : x
  2. Step 2: Convert to fraction form
    681,851.40/1,022,613.08 = 208,540.86/x
  3. Step 3: Cross multiply
    681,851.40x = 1,022,613.08 × 208,540.86
  4. Step 4: Simplify right side
    681,851.40x = 213,256,610,107.74
  5. Step 5: Solve for x
    x = 213,256,610,107.74/681,851.40
  6. Step 6: Final answer
    x = 312,761.12

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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.