Home / 1,216,321.26-1,678,244.94-726,195.57

Finding the Fourth Proportional to 1,216,321.26, 1,678,244.94 and 726,195.57

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Solution

The fourth proportional to 1,216,321.26, 1,678,244.94 and 726,195.57 is: 1,001,983.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,321.26 : 1,678,244.94 = 726,195.57 : x
  2. Step 2: Convert to fraction form
    1,216,321.26/1,678,244.94 = 726,195.57/x
  3. Step 3: Cross multiply
    1,216,321.26x = 1,678,244.94 × 726,195.57
  4. Step 4: Simplify right side
    1,216,321.26x = 1,218,734,040,802.92
  5. Step 5: Solve for x
    x = 1,218,734,040,802.92/1,216,321.26
  6. Step 6: Final answer
    x = 1,001,983.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.