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Finding the Fourth Proportional to 449,786.97, 620,304.06 and 373,184.73

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Solution

The fourth proportional to 449,786.97, 620,304.06 and 373,184.73 is: 514,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,786.97 : 620,304.06 = 373,184.73 : x
  2. Step 2: Convert to fraction form
    449,786.97/620,304.06 = 373,184.73/x
  3. Step 3: Cross multiply
    449,786.97x = 620,304.06 × 373,184.73
  4. Step 4: Simplify right side
    449,786.97x = 231,488,003,149.00
  5. Step 5: Solve for x
    x = 231,488,003,149.00/449,786.97
  6. Step 6: Final answer
    x = 514,661.43

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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.