Finding the Third Proportional to 428,630 and 916,310
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Solution
The third proportional to 428,630 and 916,310 is: 1,958,854.99
Step by Step Solution
- Step 1: Write the proportion equation
428,630 : 916,310 = 916,310 : x - Step 2: Convert to fraction form
428,630/916,310 = 916,310/x - Step 3: Cross multiply
428,630x = 916,310 × 916,310 - Step 4: Simplify right side
428,630x = 839,624,016,100 - Step 5: Solve for x
x = 839,624,016,100/428,630 - Step 6: Final answer
x = 1,958,854.99
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Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.