Finding the Fourth Proportional to 394,081.56, 591,205.42 and 127,821.36
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Solution
The fourth proportional to 394,081.56, 591,205.42 and 127,821.36 is: 191,758.99
Step by Step Solution
- Step 1: Write the proportion equation
394,081.56 : 591,205.42 = 127,821.36 : x - Step 2: Convert to fraction form
394,081.56/591,205.42 = 127,821.36/x - Step 3: Cross multiply
394,081.56x = 591,205.42 × 127,821.36 - Step 4: Simplify right side
394,081.56x = 75,568,680,823.77 - Step 5: Solve for x
x = 75,568,680,823.77/394,081.56 - Step 6: Final answer
x = 191,758.99
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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.