Finding the Fourth Proportional to 407,017.43, 561,717.68 and 225,787.79
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Solution
The fourth proportional to 407,017.43, 561,717.68 and 225,787.79 is: 311,605.80
Step by Step Solution
- Step 1: Write the proportion equation
407,017.43 : 561,717.68 = 225,787.79 : x - Step 2: Convert to fraction form
407,017.43/561,717.68 = 225,787.79/x - Step 3: Cross multiply
407,017.43x = 561,717.68 × 225,787.79 - Step 4: Simplify right side
407,017.43x = 126,828,993,571.13 - Step 5: Solve for x
x = 126,828,993,571.13/407,017.43 - Step 6: Final answer
x = 311,605.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.