Finding the Third Proportional to 819 and 879
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Solution
The third proportional to 819 and 879 is: 943.40
Step by Step Solution
- Step 1: Write the proportion equation
819 : 879 = 879 : x - Step 2: Convert to fraction form
819/879 = 879/x - Step 3: Cross multiply
819x = 879 × 879 - Step 4: Simplify right side
819x = 772,641 - Step 5: Solve for x
x = 772,641/819 - Step 6: Final answer
x = 943.40
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Why These Related Problems?
These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.