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Finding the Fourth Proportional to 543,211.02, 749,769 and 371,198.61

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Solution

The fourth proportional to 543,211.02, 749,769 and 371,198.61 is: 512,348.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,211.02 : 749,769 = 371,198.61 : x
  2. Step 2: Convert to fraction form
    543,211.02/749,769 = 371,198.61/x
  3. Step 3: Cross multiply
    543,211.02x = 749,769 × 371,198.61
  4. Step 4: Simplify right side
    543,211.02x = 278,313,210,621.09
  5. Step 5: Solve for x
    x = 278,313,210,621.09/543,211.02
  6. Step 6: Final answer
    x = 512,348.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.