Finding the Fourth Proportional to 2,178,375.75, 3,006,378.90 and 1,248,206.67
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Solution
The fourth proportional to 2,178,375.75, 3,006,378.90 and 1,248,206.67 is: 1,722,651.47
Step by Step Solution
- Step 1: Write the proportion equation
2,178,375.75 : 3,006,378.90 = 1,248,206.67 : x - Step 2: Convert to fraction form
2,178,375.75/3,006,378.90 = 1,248,206.67/x - Step 3: Cross multiply
2,178,375.75x = 3,006,378.90 × 1,248,206.67 - Step 4: Simplify right side
2,178,375.75x = 3,752,582,195,527.26 - Step 5: Solve for x
x = 3,752,582,195,527.26/2,178,375.75 - Step 6: Final answer
x = 1,722,651.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.