Finding the Fourth Proportional to 892,299.46, 1,338,449.18 and 261,213.26
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Solution
The fourth proportional to 892,299.46, 1,338,449.18 and 261,213.26 is: 391,819.89
Step by Step Solution
- Step 1: Write the proportion equation
892,299.46 : 1,338,449.18 = 261,213.26 : x - Step 2: Convert to fraction form
892,299.46/1,338,449.18 = 261,213.26/x - Step 3: Cross multiply
892,299.46x = 1,338,449.18 × 261,213.26 - Step 4: Simplify right side
892,299.46x = 349,620,673,652.13 - Step 5: Solve for x
x = 349,620,673,652.13/892,299.46 - Step 6: Final answer
x = 391,819.89
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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.