Finding the Third Proportional to 645 and 773
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Solution
The third proportional to 645 and 773 is: 926.40
Step by Step Solution
- Step 1: Write the proportion equation
645 : 773 = 773 : x - Step 2: Convert to fraction form
645/773 = 773/x - Step 3: Cross multiply
645x = 773 × 773 - Step 4: Simplify right side
645x = 597,529 - Step 5: Solve for x
x = 597,529/645 - Step 6: Final answer
x = 926.40
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Why These Related Problems?
These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.