Finding the Third Proportional to 412,351.75 and 638,480.75
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Solution
The third proportional to 412,351.75 and 638,480.75 is: 988,616.32
Step by Step Solution
- Step 1: Write the proportion equation
412,351.75 : 638,480.75 = 638,480.75 : x - Step 2: Convert to fraction form
412,351.75/638,480.75 = 638,480.75/x - Step 3: Cross multiply
412,351.75x = 638,480.75 × 638,480.75 - Step 4: Simplify right side
412,351.75x = 407,657,668,120.56 - Step 5: Solve for x
x = 407,657,668,120.56/412,351.75 - Step 6: Final answer
x = 988,616.32
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.