Finding the Fourth Proportional to 2,764,639.68, 3,815,067.60 and 1,541,078.40
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Solution
The fourth proportional to 2,764,639.68, 3,815,067.60 and 1,541,078.40 is: 2,126,612.85
Step by Step Solution
- Step 1: Write the proportion equation
2,764,639.68 : 3,815,067.60 = 1,541,078.40 : x - Step 2: Convert to fraction form
2,764,639.68/3,815,067.60 = 1,541,078.40/x - Step 3: Cross multiply
2,764,639.68x = 3,815,067.60 × 1,541,078.40 - Step 4: Simplify right side
2,764,639.68x = 5,879,318,272,899.84 - Step 5: Solve for x
x = 5,879,318,272,899.84/2,764,639.68 - Step 6: Final answer
x = 2,126,612.85
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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.