Home / 681,010.20-1,021,515.30-207,694.80

Finding the Fourth Proportional to 681,010.20, 1,021,515.30 and 207,694.80

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Solution

The fourth proportional to 681,010.20, 1,021,515.30 and 207,694.80 is: 311,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,010.20 : 1,021,515.30 = 207,694.80 : x
  2. Step 2: Convert to fraction form
    681,010.20/1,021,515.30 = 207,694.80/x
  3. Step 3: Cross multiply
    681,010.20x = 1,021,515.30 × 207,694.80
  4. Step 4: Simplify right side
    681,010.20x = 212,163,415,930.44
  5. Step 5: Solve for x
    x = 212,163,415,930.44/681,010.20
  6. Step 6: Final answer
    x = 311,542.20

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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.