Finding the Third Proportional to 693,825.75 and 990,916.03
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Solution
The third proportional to 693,825.75 and 990,916.03 is: 1,415,217.84
Step by Step Solution
- Step 1: Write the proportion equation
693,825.75 : 990,916.03 = 990,916.03 : x - Step 2: Convert to fraction form
693,825.75/990,916.03 = 990,916.03/x - Step 3: Cross multiply
693,825.75x = 990,916.03 × 990,916.03 - Step 4: Simplify right side
693,825.75x = 981,914,580,988.25 - Step 5: Solve for x
x = 981,914,580,988.25/693,825.75 - Step 6: Final answer
x = 1,415,217.84
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Why These Related Problems?
These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.