Home / 1,040,443.20-1,560,664.80-613,540.80

Finding the Fourth Proportional to 1,040,443.20, 1,560,664.80 and 613,540.80

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Solution

The fourth proportional to 1,040,443.20, 1,560,664.80 and 613,540.80 is: 920,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,443.20 : 1,560,664.80 = 613,540.80 : x
  2. Step 2: Convert to fraction form
    1,040,443.20/1,560,664.80 = 613,540.80/x
  3. Step 3: Cross multiply
    1,040,443.20x = 1,560,664.80 × 613,540.80
  4. Step 4: Simplify right side
    1,040,443.20x = 957,531,529,923.84
  5. Step 5: Solve for x
    x = 957,531,529,923.84/1,040,443.20
  6. Step 6: Final answer
    x = 920,311.20

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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.