Finding the Fourth Proportional to 1,324,614.66, 1,987,116.38 and 425,760.09
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Solution
The fourth proportional to 1,324,614.66, 1,987,116.38 and 425,760.09 is: 638,702.62
Step by Step Solution
- Step 1: Write the proportion equation
1,324,614.66 : 1,987,116.38 = 425,760.09 : x - Step 2: Convert to fraction form
1,324,614.66/1,987,116.38 = 425,760.09/x - Step 3: Cross multiply
1,324,614.66x = 1,987,116.38 × 425,760.09 - Step 4: Simplify right side
1,324,614.66x = 846,034,848,789.27 - Step 5: Solve for x
x = 846,034,848,789.27/1,324,614.66 - Step 6: Final answer
x = 638,702.62
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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.