Finding the Fourth Proportional to 2,560,982.40, 3,836,419.20 and 1,299,715.20
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Solution
The fourth proportional to 2,560,982.40, 3,836,419.20 and 1,299,715.20 is: 1,947,007.66
Step by Step Solution
- Step 1: Write the proportion equation
2,560,982.40 : 3,836,419.20 = 1,299,715.20 : x - Step 2: Convert to fraction form
2,560,982.40/3,836,419.20 = 1,299,715.20/x - Step 3: Cross multiply
2,560,982.40x = 3,836,419.20 × 1,299,715.20 - Step 4: Simplify right side
2,560,982.40x = 4,986,252,347,811.84 - Step 5: Solve for x
x = 4,986,252,347,811.84/2,560,982.40 - Step 6: Final answer
x = 1,947,007.66
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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.