Finding the Fourth Proportional to 3,981,464.80, 5,972,197.20 and 2,986,136.80
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Solution
The fourth proportional to 3,981,464.80, 5,972,197.20 and 2,986,136.80 is: 4,479,205.20
Step by Step Solution
- Step 1: Write the proportion equation
3,981,464.80 : 5,972,197.20 = 2,986,136.80 : x - Step 2: Convert to fraction form
3,981,464.80/5,972,197.20 = 2,986,136.80/x - Step 3: Cross multiply
3,981,464.80x = 5,972,197.20 × 2,986,136.80 - Step 4: Simplify right side
3,981,464.80x = 17,833,797,835,776.96 - Step 5: Solve for x
x = 17,833,797,835,776.96/3,981,464.80 - Step 6: Final answer
x = 4,479,205.20
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1.5x scale
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.