Home / 681,012.80-1,021,519.20-444,816.80

Finding the Fourth Proportional to 681,012.80, 1,021,519.20 and 444,816.80

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Solution

The fourth proportional to 681,012.80, 1,021,519.20 and 444,816.80 is: 667,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,012.80 : 1,021,519.20 = 444,816.80 : x
  2. Step 2: Convert to fraction form
    681,012.80/1,021,519.20 = 444,816.80/x
  3. Step 3: Cross multiply
    681,012.80x = 1,021,519.20 × 444,816.80
  4. Step 4: Simplify right side
    681,012.80x = 454,388,901,682.56
  5. Step 5: Solve for x
    x = 454,388,901,682.56/681,012.80
  6. Step 6: Final answer
    x = 667,225.20

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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.