Finding the Fourth Proportional to 618,118.18, 925,974.41 and 455,716.42
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Solution
The fourth proportional to 618,118.18, 925,974.41 and 455,716.42 is: 682,687.80
Step by Step Solution
- Step 1: Write the proportion equation
618,118.18 : 925,974.41 = 455,716.42 : x - Step 2: Convert to fraction form
618,118.18/925,974.41 = 455,716.42/x - Step 3: Cross multiply
618,118.18x = 925,974.41 × 455,716.42 - Step 4: Simplify right side
618,118.18x = 421,981,743,136.81 - Step 5: Solve for x
x = 421,981,743,136.81/618,118.18 - Step 6: Final answer
x = 682,687.80
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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.