Finding the Third Proportional to 319,876 and 679,112
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Solution
The third proportional to 319,876 and 679,112 is: 1,441,787.16
Step by Step Solution
- Step 1: Write the proportion equation
319,876 : 679,112 = 679,112 : x - Step 2: Convert to fraction form
319,876/679,112 = 679,112/x - Step 3: Cross multiply
319,876x = 679,112 × 679,112 - Step 4: Simplify right side
319,876x = 461,193,108,544 - Step 5: Solve for x
x = 461,193,108,544/319,876 - Step 6: Final answer
x = 1,441,787.16
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Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.