Finding the Fourth Proportional to 892,576.13, 1,338,864.19 and 261,489.94
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Solution
The fourth proportional to 892,576.13, 1,338,864.19 and 261,489.94 is: 392,234.91
Step by Step Solution
- Step 1: Write the proportion equation
892,576.13 : 1,338,864.19 = 261,489.94 : x - Step 2: Convert to fraction form
892,576.13/1,338,864.19 = 261,489.94/x - Step 3: Cross multiply
892,576.13x = 1,338,864.19 × 261,489.94 - Step 4: Simplify right side
892,576.13x = 350,099,516,711.25 - Step 5: Solve for x
x = 350,099,516,711.25/892,576.13 - Step 6: Final answer
x = 392,234.91
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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.