Finding the Fourth Proportional to 4,278,150.78, 6,412,905.60 and 2,681,832.75
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Solution
The fourth proportional to 4,278,150.78, 6,412,905.60 and 2,681,832.75 is: 4,020,040.70
Step by Step Solution
- Step 1: Write the proportion equation
4,278,150.78 : 6,412,905.60 = 2,681,832.75 : x - Step 2: Convert to fraction form
4,278,150.78/6,412,905.60 = 2,681,832.75/x - Step 3: Cross multiply
4,278,150.78x = 6,412,905.60 × 2,681,832.75 - Step 4: Simplify right side
4,278,150.78x = 17,198,340,260,738.40 - Step 5: Solve for x
x = 17,198,340,260,738.40/4,278,150.78 - Step 6: Final answer
x = 4,020,040.70
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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.