Finding the Fourth Proportional to 1,287,201.24, 1,930,739.12 and 477,743.22
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Solution
The fourth proportional to 1,287,201.24, 1,930,739.12 and 477,743.22 is: 716,591.54
Step by Step Solution
- Step 1: Write the proportion equation
1,287,201.24 : 1,930,739.12 = 477,743.22 : x - Step 2: Convert to fraction form
1,287,201.24/1,930,739.12 = 477,743.22/x - Step 3: Cross multiply
1,287,201.24x = 1,930,739.12 × 477,743.22 - Step 4: Simplify right side
1,287,201.24x = 922,397,524,168.77 - Step 5: Solve for x
x = 922,397,524,168.77/1,287,201.24 - Step 6: Final answer
x = 716,591.54
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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.