Finding the Third Proportional to 679 and 928
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Solution
The third proportional to 679 and 928 is: 1,268.31
Step by Step Solution
- Step 1: Write the proportion equation
679 : 928 = 928 : x - Step 2: Convert to fraction form
679/928 = 928/x - Step 3: Cross multiply
679x = 928 × 928 - Step 4: Simplify right side
679x = 861,184 - Step 5: Solve for x
x = 861,184/679 - Step 6: Final answer
x = 1,268.31
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.