Finding the Fourth Proportional to 2,831,375.79, 3,907,358.55 and 1,542,213.09
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Solution
The fourth proportional to 2,831,375.79, 3,907,358.55 and 1,542,213.09 is: 2,128,286.72
Step by Step Solution
- Step 1: Write the proportion equation
2,831,375.79 : 3,907,358.55 = 1,542,213.09 : x - Step 2: Convert to fraction form
2,831,375.79/3,907,358.55 = 1,542,213.09/x - Step 3: Cross multiply
2,831,375.79x = 3,907,358.55 × 1,542,213.09 - Step 4: Simplify right side
2,831,375.79x = 6,025,979,503,133.42 - Step 5: Solve for x
x = 6,025,979,503,133.42/2,831,375.79 - Step 6: Final answer
x = 2,128,286.72
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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.