Finding the Fourth Proportional to 843.06, 1,163.48 and 489.08
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Solution
The fourth proportional to 843.06, 1,163.48 and 489.08 is: 674.96
Step by Step Solution
- Step 1: Write the proportion equation
843.06 : 1,163.48 = 489.08 : x - Step 2: Convert to fraction form
843.06/1,163.48 = 489.08/x - Step 3: Cross multiply
843.06x = 1,163.48 × 489.08 - Step 4: Simplify right side
843.06x = 569,028.98 - Step 5: Solve for x
x = 569,028.98/843.06 - Step 6: Final answer
x = 674.96
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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.