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Finding the Fourth Proportional to 543,305.80, 814,302.60 and 276,929.20

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Solution

The fourth proportional to 543,305.80, 814,302.60 and 276,929.20 is: 415,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,305.80 : 814,302.60 = 276,929.20 : x
  2. Step 2: Convert to fraction form
    543,305.80/814,302.60 = 276,929.20/x
  3. Step 3: Cross multiply
    543,305.80x = 814,302.60 × 276,929.20
  4. Step 4: Simplify right side
    543,305.80x = 225,504,167,575.92
  5. Step 5: Solve for x
    x = 225,504,167,575.92/543,305.80
  6. Step 6: Final answer
    x = 415,059.38

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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.