Finding the Fourth Proportional to 394,600.76, 591,906.62 and 128,362.68
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Solution
The fourth proportional to 394,600.76, 591,906.62 and 128,362.68 is: 192,545.80
Step by Step Solution
- Step 1: Write the proportion equation
394,600.76 : 591,906.62 = 128,362.68 : x - Step 2: Convert to fraction form
394,600.76/591,906.62 = 128,362.68/x - Step 3: Cross multiply
394,600.76x = 591,906.62 × 128,362.68 - Step 4: Simplify right side
394,600.76x = 75,978,720,052.94 - Step 5: Solve for x
x = 75,978,720,052.94/394,600.76 - Step 6: Final answer
x = 192,545.80
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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.