Finding the Fourth Proportional to 512,584.68, 768,589.08 and 212,863.64
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Solution
The fourth proportional to 512,584.68, 768,589.08 and 212,863.64 is: 319,175.89
Step by Step Solution
- Step 1: Write the proportion equation
512,584.68 : 768,589.08 = 212,863.64 : x - Step 2: Convert to fraction form
512,584.68/768,589.08 = 212,863.64/x - Step 3: Cross multiply
512,584.68x = 768,589.08 × 212,863.64 - Step 4: Simplify right side
512,584.68x = 163,604,669,233.05 - Step 5: Solve for x
x = 163,604,669,233.05/512,584.68 - Step 6: Final answer
x = 319,175.89
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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.