Finding the Third Proportional to 717 and 1,555.50
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Solution
The third proportional to 717 and 1,555.50 is: 3,374.59
Step by Step Solution
- Step 1: Write the proportion equation
717 : 1,555.50 = 1,555.50 : x - Step 2: Convert to fraction form
717/1,555.50 = 1,555.50/x - Step 3: Cross multiply
717x = 1,555.50 × 1,555.50 - Step 4: Simplify right side
717x = 2,419,580.25 - Step 5: Solve for x
x = 2,419,580.25/717 - Step 6: Final answer
x = 3,374.59
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Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.