Home / 681,890.36-1,022,671.24-208,579.80

Finding the Fourth Proportional to 681,890.36, 1,022,671.24 and 208,579.80

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Solution

The fourth proportional to 681,890.36, 1,022,671.24 and 208,579.80 is: 312,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,890.36 : 1,022,671.24 = 208,579.80 : x
  2. Step 2: Convert to fraction form
    681,890.36/1,022,671.24 = 208,579.80/x
  3. Step 3: Cross multiply
    681,890.36x = 1,022,671.24 × 208,579.80
  4. Step 4: Simplify right side
    681,890.36x = 213,308,562,704.95
  5. Step 5: Solve for x
    x = 213,308,562,704.95/681,890.36
  6. Step 6: Final answer
    x = 312,819.44

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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.