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Finding the Fourth Proportional to 450,344.56, 621,414.11 and 269,018

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Solution

The fourth proportional to 450,344.56, 621,414.11 and 269,018 is: 371,208.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,344.56 : 621,414.11 = 269,018 : x
  2. Step 2: Convert to fraction form
    450,344.56/621,414.11 = 269,018/x
  3. Step 3: Cross multiply
    450,344.56x = 621,414.11 × 269,018
  4. Step 4: Simplify right side
    450,344.56x = 167,171,581,043.98
  5. Step 5: Solve for x
    x = 167,171,581,043.98/450,344.56
  6. Step 6: Final answer
    x = 371,208.17

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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.