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Finding the Fourth Proportional to 446,473.10, 669,744 and 126,619.49

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Solution

The fourth proportional to 446,473.10, 669,744 and 126,619.49 is: 189,938.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,473.10 : 669,744 = 126,619.49 : x
  2. Step 2: Convert to fraction form
    446,473.10/669,744 = 126,619.49/x
  3. Step 3: Cross multiply
    446,473.10x = 669,744 × 126,619.49
  4. Step 4: Simplify right side
    446,473.10x = 84,802,640,361.84
  5. Step 5: Solve for x
    x = 84,802,640,361.84/446,473.10
  6. Step 6: Final answer
    x = 189,938.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.