Finding the Third Proportional to 718 and 840
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Solution
The third proportional to 718 and 840 is: 982.73
Step by Step Solution
- Step 1: Write the proportion equation
718 : 840 = 840 : x - Step 2: Convert to fraction form
718/840 = 840/x - Step 3: Cross multiply
718x = 840 × 840 - Step 4: Simplify right side
718x = 705,600 - Step 5: Solve for x
x = 705,600/718 - Step 6: Final answer
x = 982.73
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Why These Related Problems?
These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.