Finding the Third Proportional to 876,425 and 1,320,405
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Solution
The third proportional to 876,425 and 1,320,405 is: 1,989,296.70
Step by Step Solution
- Step 1: Write the proportion equation
876,425 : 1,320,405 = 1,320,405 : x - Step 2: Convert to fraction form
876,425/1,320,405 = 1,320,405/x - Step 3: Cross multiply
876,425x = 1,320,405 × 1,320,405 - Step 4: Simplify right side
876,425x = 1,743,469,364,025 - Step 5: Solve for x
x = 1,743,469,364,025/876,425 - Step 6: Final answer
x = 1,989,296.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.