Finding the Fourth Proportional to 3,471,981.48, 5,211,338.22 and 1,676,128.68
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Solution
The fourth proportional to 3,471,981.48, 5,211,338.22 and 1,676,128.68 is: 2,515,817.99
Step by Step Solution
- Step 1: Write the proportion equation
3,471,981.48 : 5,211,338.22 = 1,676,128.68 : x - Step 2: Convert to fraction form
3,471,981.48/5,211,338.22 = 1,676,128.68/x - Step 3: Cross multiply
3,471,981.48x = 5,211,338.22 × 1,676,128.68 - Step 4: Simplify right side
3,471,981.48x = 8,734,873,451,722.15 - Step 5: Solve for x
x = 8,734,873,451,722.15/3,471,981.48 - Step 6: Final answer
x = 2,515,817.99
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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.