Finding the Fourth Proportional to 3,679,843.20, 5,078,183.85 and 2,048,215.44
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Solution
The fourth proportional to 3,679,843.20, 5,078,183.85 and 2,048,215.44 is: 2,826,537.44
Step by Step Solution
- Step 1: Write the proportion equation
3,679,843.20 : 5,078,183.85 = 2,048,215.44 : x - Step 2: Convert to fraction form
3,679,843.20/5,078,183.85 = 2,048,215.44/x - Step 3: Cross multiply
3,679,843.20x = 5,078,183.85 × 2,048,215.44 - Step 4: Simplify right side
3,679,843.20x = 10,401,214,568,728.64 - Step 5: Solve for x
x = 10,401,214,568,728.64/3,679,843.20 - Step 6: Final answer
x = 2,826,537.44
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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.