Finding the Third Proportional to 392,343.75 and 555,319.13
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Solution
The third proportional to 392,343.75 and 555,319.13 is: 785,992.72
Step by Step Solution
- Step 1: Write the proportion equation
392,343.75 : 555,319.13 = 555,319.13 : x - Step 2: Convert to fraction form
392,343.75/555,319.13 = 555,319.13/x - Step 3: Cross multiply
392,343.75x = 555,319.13 × 555,319.13 - Step 4: Simplify right side
392,343.75x = 308,379,330,590.77 - Step 5: Solve for x
x = 308,379,330,590.77/392,343.75 - Step 6: Final answer
x = 785,992.72
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These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.