Finding the Fourth Proportional to 858,801.12, 1,288,201.76 and 267,825.12
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Solution
The fourth proportional to 858,801.12, 1,288,201.76 and 267,825.12 is: 401,737.70
Step by Step Solution
- Step 1: Write the proportion equation
858,801.12 : 1,288,201.76 = 267,825.12 : x - Step 2: Convert to fraction form
858,801.12/1,288,201.76 = 267,825.12/x - Step 3: Cross multiply
858,801.12x = 1,288,201.76 × 267,825.12 - Step 4: Simplify right side
858,801.12x = 345,012,790,956.21 - Step 5: Solve for x
x = 345,012,790,956.21/858,801.12 - Step 6: Final answer
x = 401,737.70
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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.