Finding the Fourth Proportional to 4,431,178.80, 6,642,758.70 and 3,083,986.80
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Solution
The fourth proportional to 4,431,178.80, 6,642,758.70 and 3,083,986.80 is: 4,623,189.69
Step by Step Solution
- Step 1: Write the proportion equation
4,431,178.80 : 6,642,758.70 = 3,083,986.80 : x - Step 2: Convert to fraction form
4,431,178.80/6,642,758.70 = 3,083,986.80/x - Step 3: Cross multiply
4,431,178.80x = 6,642,758.70 × 3,083,986.80 - Step 4: Simplify right side
4,431,178.80x = 20,486,180,146,385.16 - Step 5: Solve for x
x = 20,486,180,146,385.16/4,431,178.80 - Step 6: Final answer
x = 4,623,189.69
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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.