Finding the Fourth Proportional to 1,192,138.32, 1,645,194.16 and 682,939.12
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Solution
The fourth proportional to 1,192,138.32, 1,645,194.16 and 682,939.12 is: 942,480.78
Step by Step Solution
- Step 1: Write the proportion equation
1,192,138.32 : 1,645,194.16 = 682,939.12 : x - Step 2: Convert to fraction form
1,192,138.32/1,645,194.16 = 682,939.12/x - Step 3: Cross multiply
1,192,138.32x = 1,645,194.16 × 682,939.12 - Step 4: Simplify right side
1,192,138.32x = 1,123,567,451,859.54 - Step 5: Solve for x
x = 1,123,567,451,859.54/1,192,138.32 - Step 6: Final answer
x = 942,480.78
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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.