Finding the Fourth Proportional to 4,207,285.80, 6,315,075.90 and 2,079,772.20
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Solution
The fourth proportional to 4,207,285.80, 6,315,075.90 and 2,079,772.20 is: 3,121,708.37
Step by Step Solution
- Step 1: Write the proportion equation
4,207,285.80 : 6,315,075.90 = 2,079,772.20 : x - Step 2: Convert to fraction form
4,207,285.80/6,315,075.90 = 2,079,772.20/x - Step 3: Cross multiply
4,207,285.80x = 6,315,075.90 × 2,079,772.20 - Step 4: Simplify right side
4,207,285.80x = 13,133,919,297,709.98 - Step 5: Solve for x
x = 13,133,919,297,709.98/4,207,285.80 - Step 6: Final answer
x = 3,121,708.37
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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.