Finding the Third Proportional to 434 and 654
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Solution
The third proportional to 434 and 654 is: 985.52
Step by Step Solution
- Step 1: Write the proportion equation
434 : 654 = 654 : x - Step 2: Convert to fraction form
434/654 = 654/x - Step 3: Cross multiply
434x = 654 × 654 - Step 4: Simplify right side
434x = 427,716 - Step 5: Solve for x
x = 427,716/434 - Step 6: Final answer
x = 985.52
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.