Finding the Fourth Proportional to 3,612,887.75, 4,985,791.99 and 1,981,306.58
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Solution
The fourth proportional to 3,612,887.75, 4,985,791.99 and 1,981,306.58 is: 2,734,206.85
Step by Step Solution
- Step 1: Write the proportion equation
3,612,887.75 : 4,985,791.99 = 1,981,306.58 : x - Step 2: Convert to fraction form
3,612,887.75/4,985,791.99 = 1,981,306.58/x - Step 3: Cross multiply
3,612,887.75x = 4,985,791.99 × 1,981,306.58 - Step 4: Simplify right side
3,612,887.75x = 9,878,382,446,416.07 - Step 5: Solve for x
x = 9,878,382,446,416.07/3,612,887.75 - Step 6: Final answer
x = 2,734,206.85
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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.