Finding the Fourth Proportional to 801,168.20, 1,207,376.01 and 721,286
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Solution
The fourth proportional to 801,168.20, 1,207,376.01 and 721,286 is: 1,086,991.99
Step by Step Solution
- Step 1: Write the proportion equation
801,168.20 : 1,207,376.01 = 721,286 : x - Step 2: Convert to fraction form
801,168.20/1,207,376.01 = 721,286/x - Step 3: Cross multiply
801,168.20x = 1,207,376.01 × 721,286 - Step 4: Simplify right side
801,168.20x = 870,863,412,748.86 - Step 5: Solve for x
x = 870,863,412,748.86/801,168.20 - Step 6: Final answer
x = 1,086,991.99
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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.