Finding the Fourth Proportional to 2,649,355.20, 3,971,311.20 and 1,299,441.60
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Solution
The fourth proportional to 2,649,355.20, 3,971,311.20 and 1,299,441.60 is: 1,947,827.52
Step by Step Solution
- Step 1: Write the proportion equation
2,649,355.20 : 3,971,311.20 = 1,299,441.60 : x - Step 2: Convert to fraction form
2,649,355.20/3,971,311.20 = 1,299,441.60/x - Step 3: Cross multiply
2,649,355.20x = 3,971,311.20 × 1,299,441.60 - Step 4: Simplify right side
2,649,355.20x = 5,160,486,979,825.92 - Step 5: Solve for x
x = 5,160,486,979,825.92/2,649,355.20 - Step 6: Final answer
x = 1,947,827.52
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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.