Finding the Fourth Proportional to 643,708.26, 965,563.20 and 222,984.09
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Solution
The fourth proportional to 643,708.26, 965,563.20 and 222,984.09 is: 334,476.42
Step by Step Solution
- Step 1: Write the proportion equation
643,708.26 : 965,563.20 = 222,984.09 : x - Step 2: Convert to fraction form
643,708.26/965,563.20 = 222,984.09/x - Step 3: Cross multiply
643,708.26x = 965,563.20 × 222,984.09 - Step 4: Simplify right side
643,708.26x = 215,305,231,489.49 - Step 5: Solve for x
x = 215,305,231,489.49/643,708.26 - Step 6: Final answer
x = 334,476.42
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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.