Finding the Fourth Proportional to 686,361.12, 946,857.97 and 431,852.64
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Solution
The fourth proportional to 686,361.12, 946,857.97 and 431,852.64 is: 595,755.07
Step by Step Solution
- Step 1: Write the proportion equation
686,361.12 : 946,857.97 = 431,852.64 : x - Step 2: Convert to fraction form
686,361.12/946,857.97 = 431,852.64/x - Step 3: Cross multiply
686,361.12x = 946,857.97 × 431,852.64 - Step 4: Simplify right side
686,361.12x = 408,903,114,049.54 - Step 5: Solve for x
x = 408,903,114,049.54/686,361.12 - Step 6: Final answer
x = 595,755.07
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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.