Finding the Fourth Proportional to 3,940,934.26, 5,438,549.64 and 2,308,951.12
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Solution
The fourth proportional to 3,940,934.26, 5,438,549.64 and 2,308,951.12 is: 3,186,387.91
Step by Step Solution
- Step 1: Write the proportion equation
3,940,934.26 : 5,438,549.64 = 2,308,951.12 : x - Step 2: Convert to fraction form
3,940,934.26/5,438,549.64 = 2,308,951.12/x - Step 3: Cross multiply
3,940,934.26x = 5,438,549.64 × 2,308,951.12 - Step 4: Simplify right side
3,940,934.26x = 12,557,345,282,453.60 - Step 5: Solve for x
x = 12,557,345,282,453.60/3,940,934.26 - Step 6: Final answer
x = 3,186,387.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.