Finding the Fourth Proportional to 2,192,502.80, 3,286,129.80 and 1,126,996.40
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Solution
The fourth proportional to 2,192,502.80, 3,286,129.80 and 1,126,996.40 is: 1,689,145.60
Step by Step Solution
- Step 1: Write the proportion equation
2,192,502.80 : 3,286,129.80 = 1,126,996.40 : x - Step 2: Convert to fraction form
2,192,502.80/3,286,129.80 = 1,126,996.40/x - Step 3: Cross multiply
2,192,502.80x = 3,286,129.80 × 1,126,996.40 - Step 4: Simplify right side
2,192,502.80x = 3,703,456,454,532.72 - Step 5: Solve for x
x = 3,703,456,454,532.72/2,192,502.80 - Step 6: Final answer
x = 1,689,145.60
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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.