Finding the Third Proportional to 439.50 and 917
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Solution
The third proportional to 439.50 and 917 is: 1,913.29
Step by Step Solution
- Step 1: Write the proportion equation
439.50 : 917 = 917 : x - Step 2: Convert to fraction form
439.50/917 = 917/x - Step 3: Cross multiply
439.50x = 917 × 917 - Step 4: Simplify right side
439.50x = 840,889 - Step 5: Solve for x
x = 840,889/439.50 - Step 6: Final answer
x = 1,913.29
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Why These Related Problems?
These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.