Finding the Fourth Proportional to 664,513.10, 996,915.45 and 327,715.10
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Solution
The fourth proportional to 664,513.10, 996,915.45 and 327,715.10 is: 491,644.55
Step by Step Solution
- Step 1: Write the proportion equation
664,513.10 : 996,915.45 = 327,715.10 : x - Step 2: Convert to fraction form
664,513.10/996,915.45 = 327,715.10/x - Step 3: Cross multiply
664,513.10x = 996,915.45 × 327,715.10 - Step 4: Simplify right side
664,513.10x = 326,704,246,388.30 - Step 5: Solve for x
x = 326,704,246,388.30/664,513.10 - Step 6: Final answer
x = 491,644.55
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1.5x scale
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.