Finding the Fourth Proportional to 3,969,847.80, 5,954,771.70 and 2,290,231.80
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Solution
The fourth proportional to 3,969,847.80, 5,954,771.70 and 2,290,231.80 is: 3,435,347.70
Step by Step Solution
- Step 1: Write the proportion equation
3,969,847.80 : 5,954,771.70 = 2,290,231.80 : x - Step 2: Convert to fraction form
3,969,847.80/5,954,771.70 = 2,290,231.80/x - Step 3: Cross multiply
3,969,847.80x = 5,954,771.70 × 2,290,231.80 - Step 4: Simplify right side
3,969,847.80x = 13,637,807,509,080.06 - Step 5: Solve for x
x = 13,637,807,509,080.06/3,969,847.80 - Step 6: Final answer
x = 3,435,347.70
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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.