Finding the Third Proportional to 392,631.75 and 622,725.75
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Solution
The third proportional to 392,631.75 and 622,725.75 is: 987,661.75
Step by Step Solution
- Step 1: Write the proportion equation
392,631.75 : 622,725.75 = 622,725.75 : x - Step 2: Convert to fraction form
392,631.75/622,725.75 = 622,725.75/x - Step 3: Cross multiply
392,631.75x = 622,725.75 × 622,725.75 - Step 4: Simplify right side
392,631.75x = 387,787,359,713.06 - Step 5: Solve for x
x = 387,787,359,713.06/392,631.75 - Step 6: Final answer
x = 987,661.75
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.