Home / 379,022.20-567,842.10-308,519.80

Finding the Fourth Proportional to 379,022.20, 567,842.10 and 308,519.80

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Solution

The fourth proportional to 379,022.20, 567,842.10 and 308,519.80 is: 462,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,022.20 : 567,842.10 = 308,519.80 : x
  2. Step 2: Convert to fraction form
    379,022.20/567,842.10 = 308,519.80/x
  3. Step 3: Cross multiply
    379,022.20x = 567,842.10 × 308,519.80
  4. Step 4: Simplify right side
    379,022.20x = 175,190,531,123.58
  5. Step 5: Solve for x
    x = 175,190,531,123.58/379,022.20
  6. Step 6: Final answer
    x = 462,217.07

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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.