Home / 543,905.46-815,854.77-211,481.46

Finding the Fourth Proportional to 543,905.46, 815,854.77 and 211,481.46

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Solution

The fourth proportional to 543,905.46, 815,854.77 and 211,481.46 is: 317,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,905.46 : 815,854.77 = 211,481.46 : x
  2. Step 2: Convert to fraction form
    543,905.46/815,854.77 = 211,481.46/x
  3. Step 3: Cross multiply
    543,905.46x = 815,854.77 × 211,481.46
  4. Step 4: Simplify right side
    543,905.46x = 172,538,157,907.56
  5. Step 5: Solve for x
    x = 172,538,157,907.56/543,905.46
  6. Step 6: Final answer
    x = 317,220.86

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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.