Finding the Fourth Proportional to 1,987,163.20, 2,981,133.60 and 849,923.20
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Solution
The fourth proportional to 1,987,163.20, 2,981,133.60 and 849,923.20 is: 1,275,051.09
Step by Step Solution
- Step 1: Write the proportion equation
1,987,163.20 : 2,981,133.60 = 849,923.20 : x - Step 2: Convert to fraction form
1,987,163.20/2,981,133.60 = 849,923.20/x - Step 3: Cross multiply
1,987,163.20x = 2,981,133.60 × 849,923.20 - Step 4: Simplify right side
1,987,163.20x = 2,533,734,608,939.52 - Step 5: Solve for x
x = 2,533,734,608,939.52/1,987,163.20 - Step 6: Final answer
x = 1,275,051.09
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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.