Finding the Fourth Proportional to 2,786,912.55, 4,180,381.79 and 765,184.95
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Solution
The fourth proportional to 2,786,912.55, 4,180,381.79 and 765,184.95 is: 1,147,780.98
Step by Step Solution
- Step 1: Write the proportion equation
2,786,912.55 : 4,180,381.79 = 765,184.95 : x - Step 2: Convert to fraction form
2,786,912.55/4,180,381.79 = 765,184.95/x - Step 3: Cross multiply
2,786,912.55x = 4,180,381.79 × 765,184.95 - Step 4: Simplify right side
2,786,912.55x = 3,198,765,227,136.14 - Step 5: Solve for x
x = 3,198,765,227,136.14/2,786,912.55 - Step 6: Final answer
x = 1,147,780.98
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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.