Finding the Fourth Proportional to 2,247,057.75, 3,100,068.40 and 1,431,115.39
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Solution
The fourth proportional to 2,247,057.75, 3,100,068.40 and 1,431,115.39 is: 1,974,384.32
Step by Step Solution
- Step 1: Write the proportion equation
2,247,057.75 : 3,100,068.40 = 1,431,115.39 : x - Step 2: Convert to fraction form
2,247,057.75/3,100,068.40 = 1,431,115.39/x - Step 3: Cross multiply
2,247,057.75x = 3,100,068.40 × 1,431,115.39 - Step 4: Simplify right side
2,247,057.75x = 4,436,555,600,273.31 - Step 5: Solve for x
x = 4,436,555,600,273.31/2,247,057.75 - Step 6: Final answer
x = 1,974,384.32
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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.