Home / 998,079.80-1,497,119.70-820,932.80

Finding the Fourth Proportional to 998,079.80, 1,497,119.70 and 820,932.80

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Solution

The fourth proportional to 998,079.80, 1,497,119.70 and 820,932.80 is: 1,231,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,079.80 : 1,497,119.70 = 820,932.80 : x
  2. Step 2: Convert to fraction form
    998,079.80/1,497,119.70 = 820,932.80/x
  3. Step 3: Cross multiply
    998,079.80x = 1,497,119.70 × 820,932.80
  4. Step 4: Simplify right side
    998,079.80x = 1,229,034,667,256.16
  5. Step 5: Solve for x
    x = 1,229,034,667,256.16/998,079.80
  6. Step 6: Final answer
    x = 1,231,399.20

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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.