Finding the Fourth Proportional to 5,278,665.75, 7,284,558.74 and 2,864,217.75
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Solution
The fourth proportional to 5,278,665.75, 7,284,558.74 and 2,864,217.75 is: 3,952,620.50
Step by Step Solution
- Step 1: Write the proportion equation
5,278,665.75 : 7,284,558.74 = 2,864,217.75 : x - Step 2: Convert to fraction form
5,278,665.75/7,284,558.74 = 2,864,217.75/x - Step 3: Cross multiply
5,278,665.75x = 7,284,558.74 × 2,864,217.75 - Step 4: Simplify right side
5,278,665.75x = 20,864,562,429,704.55 - Step 5: Solve for x
x = 20,864,562,429,704.55/5,278,665.75 - Step 6: Final answer
x = 3,952,620.50
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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.