Finding the Fourth Proportional to 447,586.93, 671,380.39 and 428,149.97
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Solution
The fourth proportional to 447,586.93, 671,380.39 and 428,149.97 is: 642,224.95
Step by Step Solution
- Step 1: Write the proportion equation
447,586.93 : 671,380.39 = 428,149.97 : x - Step 2: Convert to fraction form
447,586.93/671,380.39 = 428,149.97/x - Step 3: Cross multiply
447,586.93x = 671,380.39 × 428,149.97 - Step 4: Simplify right side
447,586.93x = 287,451,490,480.19 - Step 5: Solve for x
x = 287,451,490,480.19/447,586.93 - Step 6: Final answer
x = 642,224.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.