Finding the Fourth Proportional to 1,467,760.20, 2,201,640.30 and 1,320,793.80
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Solution
The fourth proportional to 1,467,760.20, 2,201,640.30 and 1,320,793.80 is: 1,981,190.70
Step by Step Solution
- Step 1: Write the proportion equation
1,467,760.20 : 2,201,640.30 = 1,320,793.80 : x - Step 2: Convert to fraction form
1,467,760.20/2,201,640.30 = 1,320,793.80/x - Step 3: Cross multiply
1,467,760.20x = 2,201,640.30 × 1,320,793.80 - Step 4: Simplify right side
1,467,760.20x = 2,907,912,858,070.14 - Step 5: Solve for x
x = 2,907,912,858,070.14/1,467,760.20 - Step 6: Final answer
x = 1,981,190.70
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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.