Finding the Fourth Proportional to 461,131.97, 691,933.12 and 311,057.75
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Solution
The fourth proportional to 461,131.97, 691,933.12 and 311,057.75 is: 466,745.26
Step by Step Solution
- Step 1: Write the proportion equation
461,131.97 : 691,933.12 = 311,057.75 : x - Step 2: Convert to fraction form
461,131.97/691,933.12 = 311,057.75/x - Step 3: Cross multiply
461,131.97x = 691,933.12 × 311,057.75 - Step 4: Simplify right side
461,131.97x = 215,231,160,409.87 - Step 5: Solve for x
x = 215,231,160,409.87/461,131.97 - Step 6: Final answer
x = 466,745.26
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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.