Finding the Third Proportional to 474 and 622
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Solution
The third proportional to 474 and 622 is: 816.21
Step by Step Solution
- Step 1: Write the proportion equation
474 : 622 = 622 : x - Step 2: Convert to fraction form
474/622 = 622/x - Step 3: Cross multiply
474x = 622 × 622 - Step 4: Simplify right side
474x = 386,884 - Step 5: Solve for x
x = 386,884/474 - Step 6: Final answer
x = 816.21
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Why These Related Problems?
These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.