Finding the Fourth Proportional to 3,451,520.74, 5,178,806.14 and 1,809,805.91
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Solution
The fourth proportional to 3,451,520.74, 5,178,806.14 and 1,809,805.91 is: 2,715,508.52
Step by Step Solution
- Step 1: Write the proportion equation
3,451,520.74 : 5,178,806.14 = 1,809,805.91 : x - Step 2: Convert to fraction form
3,451,520.74/5,178,806.14 = 1,809,805.91/x - Step 3: Cross multiply
3,451,520.74x = 5,178,806.14 × 1,809,805.91 - Step 4: Simplify right side
3,451,520.74x = 9,372,633,958,916.29 - Step 5: Solve for x
x = 9,372,633,958,916.29/3,451,520.74 - Step 6: Final answer
x = 2,715,508.52
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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.