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Finding the Fourth Proportional to 543,991.22, 810,519.26 and 513,432.77

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Solution

The fourth proportional to 543,991.22, 810,519.26 and 513,432.77 is: 764,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,991.22 : 810,519.26 = 513,432.77 : x
  2. Step 2: Convert to fraction form
    543,991.22/810,519.26 = 513,432.77/x
  3. Step 3: Cross multiply
    543,991.22x = 810,519.26 × 513,432.77
  4. Step 4: Simplify right side
    543,991.22x = 416,147,146,031.14
  5. Step 5: Solve for x
    x = 416,147,146,031.14/543,991.22
  6. Step 6: Final answer
    x = 764,988.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.