Finding the Fourth Proportional to 2,183,906.40, 3,275,859.60 and 1,239,122.40
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Solution
The fourth proportional to 2,183,906.40, 3,275,859.60 and 1,239,122.40 is: 1,858,683.60
Step by Step Solution
- Step 1: Write the proportion equation
2,183,906.40 : 3,275,859.60 = 1,239,122.40 : x - Step 2: Convert to fraction form
2,183,906.40/3,275,859.60 = 1,239,122.40/x - Step 3: Cross multiply
2,183,906.40x = 3,275,859.60 × 1,239,122.40 - Step 4: Simplify right side
2,183,906.40x = 4,059,191,009,615.04 - Step 5: Solve for x
x = 4,059,191,009,615.04/2,183,906.40 - Step 6: Final answer
x = 1,858,683.60
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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.