Finding the Fourth Proportional to 2,125,168.78, 2,932,734.01 and 1,207,399.54
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Solution
The fourth proportional to 2,125,168.78, 2,932,734.01 and 1,207,399.54 is: 1,666,211.99
Step by Step Solution
- Step 1: Write the proportion equation
2,125,168.78 : 2,932,734.01 = 1,207,399.54 : x - Step 2: Convert to fraction form
2,125,168.78/2,932,734.01 = 1,207,399.54/x - Step 3: Cross multiply
2,125,168.78x = 2,932,734.01 × 1,207,399.54 - Step 4: Simplify right side
2,125,168.78x = 3,540,981,694,616.36 - Step 5: Solve for x
x = 3,540,981,694,616.36/2,125,168.78 - Step 6: Final answer
x = 1,666,211.99
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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.