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Finding the Fourth Proportional to 543,256.98, 815,685.26 and 303,839.97

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Solution

The fourth proportional to 543,256.98, 815,685.26 and 303,839.97 is: 456,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,256.98 : 815,685.26 = 303,839.97 : x
  2. Step 2: Convert to fraction form
    543,256.98/815,685.26 = 303,839.97/x
  3. Step 3: Cross multiply
    543,256.98x = 815,685.26 × 303,839.97
  4. Step 4: Simplify right side
    543,256.98x = 247,837,783,408.64
  5. Step 5: Solve for x
    x = 247,837,783,408.64/543,256.98
  6. Step 6: Final answer
    x = 456,207.27

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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.