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Finding the Fourth Proportional to 543,229.62, 815,644.31 and 303,812.60

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Solution

The fourth proportional to 543,229.62, 815,644.31 and 303,812.60 is: 456,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,229.62 : 815,644.31 = 303,812.60 : x
  2. Step 2: Convert to fraction form
    543,229.62/815,644.31 = 303,812.60/x
  3. Step 3: Cross multiply
    543,229.62x = 815,644.31 × 303,812.60
  4. Step 4: Simplify right side
    543,229.62x = 247,803,012,899.02
  5. Step 5: Solve for x
    x = 247,803,012,899.02/543,229.62
  6. Step 6: Final answer
    x = 456,166.24

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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.