Home / 643,367.37-964,377.66-216,755.79

Finding the Fourth Proportional to 643,367.37, 964,377.66 and 216,755.79

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Solution

The fourth proportional to 643,367.37, 964,377.66 and 216,755.79 is: 324,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,367.37 : 964,377.66 = 216,755.79 : x
  2. Step 2: Convert to fraction form
    643,367.37/964,377.66 = 216,755.79/x
  3. Step 3: Cross multiply
    643,367.37x = 964,377.66 × 216,755.79
  4. Step 4: Simplify right side
    643,367.37x = 209,034,441,551.65
  5. Step 5: Solve for x
    x = 209,034,441,551.65/643,367.37
  6. Step 6: Final answer
    x = 324,906.81

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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.