Finding the Fourth Proportional to 2,253,515.12, 3,380,428.74 and 905,678.90
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Solution
The fourth proportional to 2,253,515.12, 3,380,428.74 and 905,678.90 is: 1,358,581.07
Step by Step Solution
- Step 1: Write the proportion equation
2,253,515.12 : 3,380,428.74 = 905,678.90 : x - Step 2: Convert to fraction form
2,253,515.12/3,380,428.74 = 905,678.90/x - Step 3: Cross multiply
2,253,515.12x = 3,380,428.74 × 905,678.90 - Step 4: Simplify right side
2,253,515.12x = 3,061,582,982,771.59 - Step 5: Solve for x
x = 3,061,582,982,771.59/2,253,515.12 - Step 6: Final answer
x = 1,358,581.07
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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.