Finding the Third Proportional to 621 and 713
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Solution
The third proportional to 621 and 713 is: 818.63
Step by Step Solution
- Step 1: Write the proportion equation
621 : 713 = 713 : x - Step 2: Convert to fraction form
621/713 = 713/x - Step 3: Cross multiply
621x = 713 × 713 - Step 4: Simplify right side
621x = 508,369 - Step 5: Solve for x
x = 508,369/621 - Step 6: Final answer
x = 818.63
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Why These Related Problems?
These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.