Home / 643,419.75-965,195.24-222,694.41

Finding the Fourth Proportional to 643,419.75, 965,195.24 and 222,694.41

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Solution

The fourth proportional to 643,419.75, 965,195.24 and 222,694.41 is: 334,064.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,419.75 : 965,195.24 = 222,694.41 : x
  2. Step 2: Convert to fraction form
    643,419.75/965,195.24 = 222,694.41/x
  3. Step 3: Cross multiply
    643,419.75x = 965,195.24 × 222,694.41
  4. Step 4: Simplify right side
    643,419.75x = 214,943,583,393.14
  5. Step 5: Solve for x
    x = 214,943,583,393.14/643,419.75
  6. Step 6: Final answer
    x = 334,064.32

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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.