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Finding the Fourth Proportional to 449,546.84, 620,386.79 and 268,363.90

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Solution

The fourth proportional to 449,546.84, 620,386.79 and 268,363.90 is: 370,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,546.84 : 620,386.79 = 268,363.90 : x
  2. Step 2: Convert to fraction form
    449,546.84/620,386.79 = 268,363.90/x
  3. Step 3: Cross multiply
    449,546.84x = 620,386.79 × 268,363.90
  4. Step 4: Simplify right side
    449,546.84x = 166,489,418,472.88
  5. Step 5: Solve for x
    x = 166,489,418,472.88/449,546.84
  6. Step 6: Final answer
    x = 370,349.44

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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.