Finding the Fourth Proportional to 396,397.26, 547,482.69 and 261,036.54
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Solution
The fourth proportional to 396,397.26, 547,482.69 and 261,036.54 is: 360,529.70
Step by Step Solution
- Step 1: Write the proportion equation
396,397.26 : 547,482.69 = 261,036.54 : x - Step 2: Convert to fraction form
396,397.26/547,482.69 = 261,036.54/x - Step 3: Cross multiply
396,397.26x = 547,482.69 × 261,036.54 - Step 4: Simplify right side
396,397.26x = 142,912,987,107.49 - Step 5: Solve for x
x = 142,912,987,107.49/396,397.26 - Step 6: Final answer
x = 360,529.70
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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.