Finding the Fourth Proportional to 641,400.08, 961,944.60 and 267,218.96
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Solution
The fourth proportional to 641,400.08, 961,944.60 and 267,218.96 is: 400,763.65
Step by Step Solution
- Step 1: Write the proportion equation
641,400.08 : 961,944.60 = 267,218.96 : x - Step 2: Convert to fraction form
641,400.08/961,944.60 = 267,218.96/x - Step 3: Cross multiply
641,400.08x = 961,944.60 × 267,218.96 - Step 4: Simplify right side
641,400.08x = 257,049,835,589.62 - Step 5: Solve for x
x = 257,049,835,589.62/641,400.08 - Step 6: Final answer
x = 400,763.65
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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.