Finding the Third Proportional to 474 and 820.50
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Solution
The third proportional to 474 and 820.50 is: 1,420.30
Step by Step Solution
- Step 1: Write the proportion equation
474 : 820.50 = 820.50 : x - Step 2: Convert to fraction form
474/820.50 = 820.50/x - Step 3: Cross multiply
474x = 820.50 × 820.50 - Step 4: Simplify right side
474x = 673,220.25 - Step 5: Solve for x
x = 673,220.25/474 - Step 6: Final answer
x = 1,420.30
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Why These Related Problems?
These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.