Finding the Fourth Proportional to 711,170.62, 981,334.84 and 420,791.10
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Solution
The fourth proportional to 711,170.62, 981,334.84 and 420,791.10 is: 580,644.02
Step by Step Solution
- Step 1: Write the proportion equation
711,170.62 : 981,334.84 = 420,791.10 : x - Step 2: Convert to fraction form
711,170.62/981,334.84 = 420,791.10/x - Step 3: Cross multiply
711,170.62x = 981,334.84 × 420,791.10 - Step 4: Simplify right side
711,170.62x = 412,936,966,791.92 - Step 5: Solve for x
x = 412,936,966,791.92/711,170.62 - Step 6: Final answer
x = 580,644.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.