Finding the Fourth Proportional to 892,576.62, 1,338,864.93 and 261,490.44
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Solution
The fourth proportional to 892,576.62, 1,338,864.93 and 261,490.44 is: 392,235.66
Step by Step Solution
- Step 1: Write the proportion equation
892,576.62 : 1,338,864.93 = 261,490.44 : x - Step 2: Convert to fraction form
892,576.62/1,338,864.93 = 261,490.44/x - Step 3: Cross multiply
892,576.62x = 1,338,864.93 × 261,490.44 - Step 4: Simplify right side
892,576.62x = 350,100,379,646.27 - Step 5: Solve for x
x = 350,100,379,646.27/892,576.62 - Step 6: Final answer
x = 392,235.66
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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.