Finding the Fourth Proportional to 3,997,235.28, 5,998,138.29 and 1,691,546.79
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Solution
The fourth proportional to 3,997,235.28, 5,998,138.29 and 1,691,546.79 is: 2,538,287.31
Step by Step Solution
- Step 1: Write the proportion equation
3,997,235.28 : 5,998,138.29 = 1,691,546.79 : x - Step 2: Convert to fraction form
3,997,235.28/5,998,138.29 = 1,691,546.79/x - Step 3: Cross multiply
3,997,235.28x = 5,998,138.29 × 1,691,546.79 - Step 4: Simplify right side
3,997,235.28x = 10,146,131,570,425.59 - Step 5: Solve for x
x = 10,146,131,570,425.59/3,997,235.28 - Step 6: Final answer
x = 2,538,287.31
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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.