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Finding the Fourth Proportional to 536,780.18, 806,843.94 and 338,375.54

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Solution

The fourth proportional to 536,780.18, 806,843.94 and 338,375.54 is: 508,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,780.18 : 806,843.94 = 338,375.54 : x
  2. Step 2: Convert to fraction form
    536,780.18/806,843.94 = 338,375.54/x
  3. Step 3: Cross multiply
    536,780.18x = 806,843.94 × 338,375.54
  4. Step 4: Simplify right side
    536,780.18x = 273,016,254,641.43
  5. Step 5: Solve for x
    x = 273,016,254,641.43/536,780.18
  6. Step 6: Final answer
    x = 508,618.36

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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.