Finding the Fourth Proportional to 843.10, 1,163.44 and 470.07
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Solution
The fourth proportional to 843.10, 1,163.44 and 470.07 is: 648.68
Step by Step Solution
- Step 1: Write the proportion equation
843.10 : 1,163.44 = 470.07 : x - Step 2: Convert to fraction form
843.10/1,163.44 = 470.07/x - Step 3: Cross multiply
843.10x = 1,163.44 × 470.07 - Step 4: Simplify right side
843.10x = 546,898.24 - Step 5: Solve for x
x = 546,898.24/843.10 - Step 6: Final answer
x = 648.68
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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.