Finding the Fourth Proportional to 2,231,405.80, 3,350,607.90 and 1,286,621.80
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Solution
The fourth proportional to 2,231,405.80, 3,350,607.90 and 1,286,621.80 is: 1,931,950.33
Step by Step Solution
- Step 1: Write the proportion equation
2,231,405.80 : 3,350,607.90 = 1,286,621.80 : x - Step 2: Convert to fraction form
2,231,405.80/3,350,607.90 = 1,286,621.80/x - Step 3: Cross multiply
2,231,405.80x = 3,350,607.90 × 1,286,621.80 - Step 4: Simplify right side
2,231,405.80x = 4,310,965,167,392.22 - Step 5: Solve for x
x = 4,310,965,167,392.22/2,231,405.80 - Step 6: Final answer
x = 1,931,950.33
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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.