Home / 481,663.98-664,375.92-309,799.44

Finding the Fourth Proportional to 481,663.98, 664,375.92 and 309,799.44

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Solution

The fourth proportional to 481,663.98, 664,375.92 and 309,799.44 is: 427,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,663.98 : 664,375.92 = 309,799.44 : x
  2. Step 2: Convert to fraction form
    481,663.98/664,375.92 = 309,799.44/x
  3. Step 3: Cross multiply
    481,663.98x = 664,375.92 × 309,799.44
  4. Step 4: Simplify right side
    481,663.98x = 205,823,287,965.49
  5. Step 5: Solve for x
    x = 205,823,287,965.49/481,663.98
  6. Step 6: Final answer
    x = 427,317.17

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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.