Finding the Fourth Proportional to 658,484.44, 987,704.63 and 279,161.13
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Solution
The fourth proportional to 658,484.44, 987,704.63 and 279,161.13 is: 418,732.36
Step by Step Solution
- Step 1: Write the proportion equation
658,484.44 : 987,704.63 = 279,161.13 : x - Step 2: Convert to fraction form
658,484.44/987,704.63 = 279,161.13/x - Step 3: Cross multiply
658,484.44x = 987,704.63 × 279,161.13 - Step 4: Simplify right side
658,484.44x = 275,728,745,542.25 - Step 5: Solve for x
x = 275,728,745,542.25/658,484.44 - Step 6: Final answer
x = 418,732.36
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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.