Finding the Fourth Proportional to 1,660,877.28, 2,491,315.82 and 398,704.91
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Solution
The fourth proportional to 1,660,877.28, 2,491,315.82 and 398,704.91 is: 598,057.33
Step by Step Solution
- Step 1: Write the proportion equation
1,660,877.28 : 2,491,315.82 = 398,704.91 : x - Step 2: Convert to fraction form
1,660,877.28/2,491,315.82 = 398,704.91/x - Step 3: Cross multiply
1,660,877.28x = 2,491,315.82 × 398,704.91 - Step 4: Simplify right side
1,660,877.28x = 993,299,836,839.72 - Step 5: Solve for x
x = 993,299,836,839.72/1,660,877.28 - Step 6: Final answer
x = 598,057.33
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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.