Finding the Third Proportional to 628 and 1,256
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Solution
The third proportional to 628 and 1,256 is: 2,512
Step by Step Solution
- Step 1: Write the proportion equation
628 : 1,256 = 1,256 : x - Step 2: Convert to fraction form
628/1,256 = 1,256/x - Step 3: Cross multiply
628x = 1,256 × 1,256 - Step 4: Simplify right side
628x = 1,577,536 - Step 5: Solve for x
x = 1,577,536/628 - Step 6: Final answer
x = 2,512
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Why These Related Problems?
These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.