Finding the Fourth Proportional to 408,175.84, 563,243.52 and 378,082.72
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Solution
The fourth proportional to 408,175.84, 563,243.52 and 378,082.72 is: 521,717.90
Step by Step Solution
- Step 1: Write the proportion equation
408,175.84 : 563,243.52 = 378,082.72 : x - Step 2: Convert to fraction form
408,175.84/563,243.52 = 378,082.72/x - Step 3: Cross multiply
408,175.84x = 563,243.52 × 378,082.72 - Step 4: Simplify right side
408,175.84x = 212,952,642,063.97 - Step 5: Solve for x
x = 212,952,642,063.97/408,175.84 - Step 6: Final answer
x = 521,717.90
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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.