Finding the Fourth Proportional to 394,596.77, 591,900.62 and 128,358.68
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Solution
The fourth proportional to 394,596.77, 591,900.62 and 128,358.68 is: 192,539.79
Step by Step Solution
- Step 1: Write the proportion equation
394,596.77 : 591,900.62 = 128,358.68 : x - Step 2: Convert to fraction form
394,596.77/591,900.62 = 128,358.68/x - Step 3: Cross multiply
394,596.77x = 591,900.62 × 128,358.68 - Step 4: Simplify right side
394,596.77x = 75,975,578,673.09 - Step 5: Solve for x
x = 75,975,578,673.09/394,596.77 - Step 6: Final answer
x = 192,539.79
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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.