Home / 1,324,993.92-1,987,072.56-426,235.29

Finding the Fourth Proportional to 1,324,993.92, 1,987,072.56 and 426,235.29

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Solution

The fourth proportional to 1,324,993.92, 1,987,072.56 and 426,235.29 is: 639,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,993.92 : 1,987,072.56 = 426,235.29 : x
  2. Step 2: Convert to fraction form
    1,324,993.92/1,987,072.56 = 426,235.29/x
  3. Step 3: Cross multiply
    1,324,993.92x = 1,987,072.56 × 426,235.29
  4. Step 4: Simplify right side
    1,324,993.92x = 846,960,448,862.64
  5. Step 5: Solve for x
    x = 846,960,448,862.64/1,324,993.92
  6. Step 6: Final answer
    x = 639,218.37

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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.