Home / 998,080.80-1,497,121.20-820,933.80

Finding the Fourth Proportional to 998,080.80, 1,497,121.20 and 820,933.80

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Solution

The fourth proportional to 998,080.80, 1,497,121.20 and 820,933.80 is: 1,231,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,080.80 : 1,497,121.20 = 820,933.80 : x
  2. Step 2: Convert to fraction form
    998,080.80/1,497,121.20 = 820,933.80/x
  3. Step 3: Cross multiply
    998,080.80x = 1,497,121.20 × 820,933.80
  4. Step 4: Simplify right side
    998,080.80x = 1,229,037,395,776.56
  5. Step 5: Solve for x
    x = 1,229,037,395,776.56/998,080.80
  6. Step 6: Final answer
    x = 1,231,400.70

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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.