Finding the Fourth Proportional to 394,525.92, 591,863.13 and 128,362.56
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Solution
The fourth proportional to 394,525.92, 591,863.13 and 128,362.56 is: 192,568.00
Step by Step Solution
- Step 1: Write the proportion equation
394,525.92 : 591,863.13 = 128,362.56 : x - Step 2: Convert to fraction form
394,525.92/591,863.13 = 128,362.56/x - Step 3: Cross multiply
394,525.92x = 591,863.13 × 128,362.56 - Step 4: Simplify right side
394,525.92x = 75,973,066,536.41 - Step 5: Solve for x
x = 75,973,066,536.41/394,525.92 - Step 6: Final answer
x = 192,568.00
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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.