Finding the Third Proportional to 612 and 870.75
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Solution
The third proportional to 612 and 870.75 is: 1,238.90
Step by Step Solution
- Step 1: Write the proportion equation
612 : 870.75 = 870.75 : x - Step 2: Convert to fraction form
612/870.75 = 870.75/x - Step 3: Cross multiply
612x = 870.75 × 870.75 - Step 4: Simplify right side
612x = 758,205.56 - Step 5: Solve for x
x = 758,205.56/612 - Step 6: Final answer
x = 1,238.90
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These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.