Finding the Fourth Proportional to 3,274,618.62, 4,912,452.81 and 1,381,638.90
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Solution
The fourth proportional to 3,274,618.62, 4,912,452.81 and 1,381,638.90 is: 2,072,679.81
Step by Step Solution
- Step 1: Write the proportion equation
3,274,618.62 : 4,912,452.81 = 1,381,638.90 : x - Step 2: Convert to fraction form
3,274,618.62/4,912,452.81 = 1,381,638.90/x - Step 3: Cross multiply
3,274,618.62x = 4,912,452.81 × 1,381,638.90 - Step 4: Simplify right side
3,274,618.62x = 6,787,235,896,710.31 - Step 5: Solve for x
x = 6,787,235,896,710.31/3,274,618.62 - Step 6: Final answer
x = 2,072,679.81
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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.