Finding the Fourth Proportional to 1,324,995.42, 1,987,074.81 and 426,236.79
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Solution
The fourth proportional to 1,324,995.42, 1,987,074.81 and 426,236.79 is: 639,220.62
Step by Step Solution
- Step 1: Write the proportion equation
1,324,995.42 : 1,987,074.81 = 426,236.79 : x - Step 2: Convert to fraction form
1,324,995.42/1,987,074.81 = 426,236.79/x - Step 3: Cross multiply
1,324,995.42x = 1,987,074.81 × 426,236.79 - Step 4: Simplify right side
1,324,995.42x = 846,964,388,504.26 - Step 5: Solve for x
x = 846,964,388,504.26/1,324,995.42 - Step 6: Final answer
x = 639,220.62
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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.