Finding the Fourth Proportional to 397,717.40, 596,576.10 and 354,171.80
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Solution
The fourth proportional to 397,717.40, 596,576.10 and 354,171.80 is: 531,257.70
Step by Step Solution
- Step 1: Write the proportion equation
397,717.40 : 596,576.10 = 354,171.80 : x - Step 2: Convert to fraction form
397,717.40/596,576.10 = 354,171.80/x - Step 3: Cross multiply
397,717.40x = 596,576.10 × 354,171.80 - Step 4: Simplify right side
397,717.40x = 211,290,431,173.98 - Step 5: Solve for x
x = 211,290,431,173.98/397,717.40 - Step 6: Final answer
x = 531,257.70
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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.