Finding the Fourth Proportional to 2,538,660.60, 3,503,442.42 and 1,392,774.12
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Solution
The fourth proportional to 2,538,660.60, 3,503,442.42 and 1,392,774.12 is: 1,922,078.10
Step by Step Solution
- Step 1: Write the proportion equation
2,538,660.60 : 3,503,442.42 = 1,392,774.12 : x - Step 2: Convert to fraction form
2,538,660.60/3,503,442.42 = 1,392,774.12/x - Step 3: Cross multiply
2,538,660.60x = 3,503,442.42 × 1,392,774.12 - Step 4: Simplify right side
2,538,660.60x = 4,879,503,933,486.17 - Step 5: Solve for x
x = 4,879,503,933,486.17/2,538,660.60 - Step 6: Final answer
x = 1,922,078.10
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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.