Finding the Fourth Proportional to 2,190,199.40, 3,287,756.70 and 1,693,764.20
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Solution
The fourth proportional to 2,190,199.40, 3,287,756.70 and 1,693,764.20 is: 2,542,546.86
Step by Step Solution
- Step 1: Write the proportion equation
2,190,199.40 : 3,287,756.70 = 1,693,764.20 : x - Step 2: Convert to fraction form
2,190,199.40/3,287,756.70 = 1,693,764.20/x - Step 3: Cross multiply
2,190,199.40x = 3,287,756.70 × 1,693,764.20 - Step 4: Simplify right side
2,190,199.40x = 5,568,684,596,770.14 - Step 5: Solve for x
x = 5,568,684,596,770.14/2,190,199.40 - Step 6: Final answer
x = 2,542,546.86
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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.