Finding the Fourth Proportional to 722, 996.42 and 411.56
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Solution
The fourth proportional to 722, 996.42 and 411.56 is: 567.99
Step by Step Solution
- Step 1: Write the proportion equation
722 : 996.42 = 411.56 : x - Step 2: Convert to fraction form
722/996.42 = 411.56/x - Step 3: Cross multiply
722x = 996.42 × 411.56 - Step 4: Simplify right side
722x = 410,086.62 - Step 5: Solve for x
x = 410,086.62/722 - Step 6: Final answer
x = 567.99
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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.