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Finding the Fourth Proportional to 543,226.86, 815,640.18 and 303,809.83

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Solution

The fourth proportional to 543,226.86, 815,640.18 and 303,809.83 is: 456,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,226.86 : 815,640.18 = 303,809.83 : x
  2. Step 2: Convert to fraction form
    543,226.86/815,640.18 = 303,809.83/x
  3. Step 3: Cross multiply
    543,226.86x = 815,640.18 × 303,809.83
  4. Step 4: Simplify right side
    543,226.86x = 247,799,504,426.97
  5. Step 5: Solve for x
    x = 247,799,504,426.97/543,226.86
  6. Step 6: Final answer
    x = 456,162.10

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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.