Finding the Fourth Proportional to 1,202,596.72, 1,659,121.53 and 686,379.26
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Solution
The fourth proportional to 1,202,596.72, 1,659,121.53 and 686,379.26 is: 946,939.73
Step by Step Solution
- Step 1: Write the proportion equation
1,202,596.72 : 1,659,121.53 = 686,379.26 : x - Step 2: Convert to fraction form
1,202,596.72/1,659,121.53 = 686,379.26/x - Step 3: Cross multiply
1,202,596.72x = 1,659,121.53 × 686,379.26 - Step 4: Simplify right side
1,202,596.72x = 1,138,786,608,011.47 - Step 5: Solve for x
x = 1,138,786,608,011.47/1,202,596.72 - Step 6: Final answer
x = 946,939.73
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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.