Finding the Third Proportional to 691 and 760
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Solution
The third proportional to 691 and 760 is: 835.89
Step by Step Solution
- Step 1: Write the proportion equation
691 : 760 = 760 : x - Step 2: Convert to fraction form
691/760 = 760/x - Step 3: Cross multiply
691x = 760 × 760 - Step 4: Simplify right side
691x = 577,600 - Step 5: Solve for x
x = 577,600/691 - Step 6: Final answer
x = 835.89
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Why These Related Problems?
These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.