Finding the Fourth Proportional to 2,120,523.46, 3,178,471.11 and 1,041,779.14
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Solution
The fourth proportional to 2,120,523.46, 3,178,471.11 and 1,041,779.14 is: 1,561,531.84
Step by Step Solution
- Step 1: Write the proportion equation
2,120,523.46 : 3,178,471.11 = 1,041,779.14 : x - Step 2: Convert to fraction form
2,120,523.46/3,178,471.11 = 1,041,779.14/x - Step 3: Cross multiply
2,120,523.46x = 3,178,471.11 × 1,041,779.14 - Step 4: Simplify right side
2,120,523.46x = 3,311,264,899,490.65 - Step 5: Solve for x
x = 3,311,264,899,490.65/2,120,523.46 - Step 6: Final answer
x = 1,561,531.84
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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.