Home / 800,012.80-1,198,406.40-499,571.20

Finding the Fourth Proportional to 800,012.80, 1,198,406.40 and 499,571.20

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Solution

The fourth proportional to 800,012.80, 1,198,406.40 and 499,571.20 is: 748,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,012.80 : 1,198,406.40 = 499,571.20 : x
  2. Step 2: Convert to fraction form
    800,012.80/1,198,406.40 = 499,571.20/x
  3. Step 3: Cross multiply
    800,012.80x = 1,198,406.40 × 499,571.20
  4. Step 4: Simplify right side
    800,012.80x = 598,689,323,335.68
  5. Step 5: Solve for x
    x = 598,689,323,335.68/800,012.80
  6. Step 6: Final answer
    x = 748,349.68

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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.