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Finding the Fourth Proportional to 543,241.08, 815,661.50 and 303,824.05

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Solution

The fourth proportional to 543,241.08, 815,661.50 and 303,824.05 is: 456,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,241.08 : 815,661.50 = 303,824.05 : x
  2. Step 2: Convert to fraction form
    543,241.08/815,661.50 = 303,824.05/x
  3. Step 3: Cross multiply
    543,241.08x = 815,661.50 × 303,824.05
  4. Step 4: Simplify right side
    543,241.08x = 247,817,576,800.80
  5. Step 5: Solve for x
    x = 247,817,576,800.80/543,241.08
  6. Step 6: Final answer
    x = 456,183.43

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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.