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Finding the Fourth Proportional to 449,961, 620,959.14 and 248,769.96

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Solution

The fourth proportional to 449,961, 620,959.14 and 248,769.96 is: 343,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,961 : 620,959.14 = 248,769.96 : x
  2. Step 2: Convert to fraction form
    449,961/620,959.14 = 248,769.96/x
  3. Step 3: Cross multiply
    449,961x = 620,959.14 × 248,769.96
  4. Step 4: Simplify right side
    449,961x = 154,475,980,419.43
  5. Step 5: Solve for x
    x = 154,475,980,419.43/449,961
  6. Step 6: Final answer
    x = 343,309.71

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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.