Finding the Fourth Proportional to 2,168,361.92, 2,992,357.16 and 1,201,508.34
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Solution
The fourth proportional to 2,168,361.92, 2,992,357.16 and 1,201,508.34 is: 1,658,091.32
Step by Step Solution
- Step 1: Write the proportion equation
2,168,361.92 : 2,992,357.16 = 1,201,508.34 : x - Step 2: Convert to fraction form
2,168,361.92/2,992,357.16 = 1,201,508.34/x - Step 3: Cross multiply
2,168,361.92x = 2,992,357.16 × 1,201,508.34 - Step 4: Simplify right side
2,168,361.92x = 3,595,342,077,991.17 - Step 5: Solve for x
x = 3,595,342,077,991.17/2,168,361.92 - Step 6: Final answer
x = 1,658,091.32
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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.