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Finding the Fourth Proportional to 543,227.58, 815,641.26 and 303,810.56

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Solution

The fourth proportional to 543,227.58, 815,641.26 and 303,810.56 is: 456,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,227.58 : 815,641.26 = 303,810.56 : x
  2. Step 2: Convert to fraction form
    543,227.58/815,641.26 = 303,810.56/x
  3. Step 3: Cross multiply
    543,227.58x = 815,641.26 × 303,810.56
  4. Step 4: Simplify right side
    543,227.58x = 247,800,422,362.45
  5. Step 5: Solve for x
    x = 247,800,422,362.45/543,227.58
  6. Step 6: Final answer
    x = 456,163.18

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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.