Finding the Fourth Proportional to 3,707,190.20, 5,560,785.30 and 1,311,015.80
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Solution
The fourth proportional to 3,707,190.20, 5,560,785.30 and 1,311,015.80 is: 1,966,523.70
Step by Step Solution
- Step 1: Write the proportion equation
3,707,190.20 : 5,560,785.30 = 1,311,015.80 : x - Step 2: Convert to fraction form
3,707,190.20/5,560,785.30 = 1,311,015.80/x - Step 3: Cross multiply
3,707,190.20x = 5,560,785.30 × 1,311,015.80 - Step 4: Simplify right side
3,707,190.20x = 7,290,277,388,707.74 - Step 5: Solve for x
x = 7,290,277,388,707.74/3,707,190.20 - Step 6: Final answer
x = 1,966,523.70
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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.