Home / 643,010.39-964,318.61-444,605.75

Finding the Fourth Proportional to 643,010.39, 964,318.61 and 444,605.75

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Solution

The fourth proportional to 643,010.39, 964,318.61 and 444,605.75 is: 666,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,010.39 : 964,318.61 = 444,605.75 : x
  2. Step 2: Convert to fraction form
    643,010.39/964,318.61 = 444,605.75/x
  3. Step 3: Cross multiply
    643,010.39x = 964,318.61 × 444,605.75
  4. Step 4: Simplify right side
    643,010.39x = 428,741,591,793.39
  5. Step 5: Solve for x
    x = 428,741,591,793.39/643,010.39
  6. Step 6: Final answer
    x = 666,772.42

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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.