Finding the Third Proportional to 686 and 928.50
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Solution
The third proportional to 686 and 928.50 is: 1,256.72
Step by Step Solution
- Step 1: Write the proportion equation
686 : 928.50 = 928.50 : x - Step 2: Convert to fraction form
686/928.50 = 928.50/x - Step 3: Cross multiply
686x = 928.50 × 928.50 - Step 4: Simplify right side
686x = 862,112.25 - Step 5: Solve for x
x = 862,112.25/686 - Step 6: Final answer
x = 1,256.72
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These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.