Finding the Fourth Proportional to 2,168,745.64, 2,992,876.77 and 1,201,892.38
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Solution
The fourth proportional to 2,168,745.64, 2,992,876.77 and 1,201,892.38 is: 1,658,615.80
Step by Step Solution
- Step 1: Write the proportion equation
2,168,745.64 : 2,992,876.77 = 1,201,892.38 : x - Step 2: Convert to fraction form
2,168,745.64/2,992,876.77 = 1,201,892.38/x - Step 3: Cross multiply
2,168,745.64x = 2,992,876.77 × 1,201,892.38 - Step 4: Simplify right side
2,168,745.64x = 3,597,115,784,142.01 - Step 5: Solve for x
x = 3,597,115,784,142.01/2,168,745.64 - Step 6: Final answer
x = 1,658,615.80
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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.