Finding the Fourth Proportional to 2,786,916.55, 4,180,387.80 and 765,188.95
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Solution
The fourth proportional to 2,786,916.55, 4,180,387.80 and 765,188.95 is: 1,147,786.99
Step by Step Solution
- Step 1: Write the proportion equation
2,786,916.55 : 4,180,387.80 = 765,188.95 : x - Step 2: Convert to fraction form
2,786,916.55/4,180,387.80 = 765,188.95/x - Step 3: Cross multiply
2,786,916.55x = 4,180,387.80 × 765,188.95 - Step 4: Simplify right side
2,786,916.55x = 3,198,786,551,274.81 - Step 5: Solve for x
x = 3,198,786,551,274.81/2,786,916.55 - Step 6: Final answer
x = 1,147,786.99
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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.