Finding the Fourth Proportional to 843.44, 1,163.36 and 549.12
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Solution
The fourth proportional to 843.44, 1,163.36 and 549.12 is: 757.40
Step by Step Solution
- Step 1: Write the proportion equation
843.44 : 1,163.36 = 549.12 : x - Step 2: Convert to fraction form
843.44/1,163.36 = 549.12/x - Step 3: Cross multiply
843.44x = 1,163.36 × 549.12 - Step 4: Simplify right side
843.44x = 638,824.24 - Step 5: Solve for x
x = 638,824.24/843.44 - Step 6: Final answer
x = 757.40
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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.