Finding the Third Proportional to 665,864 and 1,438,149
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Solution
The third proportional to 665,864 and 1,438,149 is: 3,106,148.62
Step by Step Solution
- Step 1: Write the proportion equation
665,864 : 1,438,149 = 1,438,149 : x - Step 2: Convert to fraction form
665,864/1,438,149 = 1,438,149/x - Step 3: Cross multiply
665,864x = 1,438,149 × 1,438,149 - Step 4: Simplify right side
665,864x = 2,068,272,546,201 - Step 5: Solve for x
x = 2,068,272,546,201/665,864 - Step 6: Final answer
x = 3,106,148.62
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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.