Finding the Fourth Proportional to 2,889,512.11, 3,987,290.14 and 1,649,116.36
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Solution
The fourth proportional to 2,889,512.11, 3,987,290.14 and 1,649,116.36 is: 2,275,645.56
Step by Step Solution
- Step 1: Write the proportion equation
2,889,512.11 : 3,987,290.14 = 1,649,116.36 : x - Step 2: Convert to fraction form
2,889,512.11/3,987,290.14 = 1,649,116.36/x - Step 3: Cross multiply
2,889,512.11x = 3,987,290.14 × 1,649,116.36 - Step 4: Simplify right side
2,889,512.11x = 6,575,505,401,940.69 - Step 5: Solve for x
x = 6,575,505,401,940.69/2,889,512.11 - Step 6: Final answer
x = 2,275,645.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.