Finding the Third Proportional to 391,992.75 and 552,021.75
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Solution
The third proportional to 391,992.75 and 552,021.75 is: 777,381.76
Step by Step Solution
- Step 1: Write the proportion equation
391,992.75 : 552,021.75 = 552,021.75 : x - Step 2: Convert to fraction form
391,992.75/552,021.75 = 552,021.75/x - Step 3: Cross multiply
391,992.75x = 552,021.75 × 552,021.75 - Step 4: Simplify right side
391,992.75x = 304,728,012,473.06 - Step 5: Solve for x
x = 304,728,012,473.06/391,992.75 - Step 6: Final answer
x = 777,381.76
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Why These Related Problems?
These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.