Home / 1,311,821.82-1,967,733.09-1,012,738.98

Finding the Fourth Proportional to 1,311,821.82, 1,967,733.09 and 1,012,738.98

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Solution

The fourth proportional to 1,311,821.82, 1,967,733.09 and 1,012,738.98 is: 1,519,108.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,821.82 : 1,967,733.09 = 1,012,738.98 : x
  2. Step 2: Convert to fraction form
    1,311,821.82/1,967,733.09 = 1,012,738.98/x
  3. Step 3: Cross multiply
    1,311,821.82x = 1,967,733.09 × 1,012,738.98
  4. Step 4: Simplify right side
    1,311,821.82x = 1,992,800,002,478.85
  5. Step 5: Solve for x
    x = 1,992,800,002,478.85/1,311,821.82
  6. Step 6: Final answer
    x = 1,519,108.75

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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.