Finding the Fourth Proportional to 3,198,480.80, 4,790,722.80 and 2,778,576.80
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Solution
The fourth proportional to 3,198,480.80, 4,790,722.80 and 2,778,576.80 is: 4,161,785.57
Step by Step Solution
- Step 1: Write the proportion equation
3,198,480.80 : 4,790,722.80 = 2,778,576.80 : x - Step 2: Convert to fraction form
3,198,480.80/4,790,722.80 = 2,778,576.80/x - Step 3: Cross multiply
3,198,480.80x = 4,790,722.80 × 2,778,576.80 - Step 4: Simplify right side
3,198,480.80x = 13,311,391,227,311.04 - Step 5: Solve for x
x = 13,311,391,227,311.04/3,198,480.80 - Step 6: Final answer
x = 4,161,785.57
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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.