Finding the Fourth Proportional to 2,081,431.20, 3,121,369.20 and 1,448,464.80
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Solution
The fourth proportional to 2,081,431.20, 3,121,369.20 and 1,448,464.80 is: 2,172,156.07
Step by Step Solution
- Step 1: Write the proportion equation
2,081,431.20 : 3,121,369.20 = 1,448,464.80 : x - Step 2: Convert to fraction form
2,081,431.20/3,121,369.20 = 1,448,464.80/x - Step 3: Cross multiply
2,081,431.20x = 3,121,369.20 × 1,448,464.80 - Step 4: Simplify right side
2,081,431.20x = 4,521,193,414,004.16 - Step 5: Solve for x
x = 4,521,193,414,004.16/2,081,431.20 - Step 6: Final answer
x = 2,172,156.07
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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.