Finding the Fourth Proportional to 3,914,231.20, 5,871,346.80 and 3,583,556.80
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Solution
The fourth proportional to 3,914,231.20, 5,871,346.80 and 3,583,556.80 is: 5,375,335.20
Step by Step Solution
- Step 1: Write the proportion equation
3,914,231.20 : 5,871,346.80 = 3,583,556.80 : x - Step 2: Convert to fraction form
3,914,231.20/5,871,346.80 = 3,583,556.80/x - Step 3: Cross multiply
3,914,231.20x = 5,871,346.80 × 3,583,556.80 - Step 4: Simplify right side
3,914,231.20x = 21,040,304,750,298.24 - Step 5: Solve for x
x = 21,040,304,750,298.24/3,914,231.20 - Step 6: Final answer
x = 5,375,335.20
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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.