Finding the Fourth Proportional to 2,880,409.55, 3,974,626.28 and 1,591,173.05
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Solution
The fourth proportional to 2,880,409.55, 3,974,626.28 and 1,591,173.05 is: 2,195,631.60
Step by Step Solution
- Step 1: Write the proportion equation
2,880,409.55 : 3,974,626.28 = 1,591,173.05 : x - Step 2: Convert to fraction form
2,880,409.55/3,974,626.28 = 1,591,173.05/x - Step 3: Cross multiply
2,880,409.55x = 3,974,626.28 × 1,591,173.05 - Step 4: Simplify right side
2,880,409.55x = 6,324,318,220,557.75 - Step 5: Solve for x
x = 6,324,318,220,557.75/2,880,409.55 - Step 6: Final answer
x = 2,195,631.60
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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.