Finding the Third Proportional to 621 and 754
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Solution
The third proportional to 621 and 754 is: 915.48
Step by Step Solution
- Step 1: Write the proportion equation
621 : 754 = 754 : x - Step 2: Convert to fraction form
621/754 = 754/x - Step 3: Cross multiply
621x = 754 × 754 - Step 4: Simplify right side
621x = 568,516 - Step 5: Solve for x
x = 568,516/621 - Step 6: Final answer
x = 915.48
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Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.