Finding the Fourth Proportional to 843.39, 1,163.69 and 512
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Solution
The fourth proportional to 843.39, 1,163.69 and 512 is: 706.45
Step by Step Solution
- Step 1: Write the proportion equation
843.39 : 1,163.69 = 512 : x - Step 2: Convert to fraction form
843.39/1,163.69 = 512/x - Step 3: Cross multiply
843.39x = 1,163.69 × 512 - Step 4: Simplify right side
843.39x = 595,809.28 - Step 5: Solve for x
x = 595,809.28/843.39 - Step 6: Final answer
x = 706.45
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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.