Finding the Fourth Proportional to 3,978,125.76, 5,489,835.75 and 2,324,370.13
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Solution
The fourth proportional to 3,978,125.76, 5,489,835.75 and 2,324,370.13 is: 3,207,643.75
Step by Step Solution
- Step 1: Write the proportion equation
3,978,125.76 : 5,489,835.75 = 2,324,370.13 : x - Step 2: Convert to fraction form
3,978,125.76/5,489,835.75 = 2,324,370.13/x - Step 3: Cross multiply
3,978,125.76x = 5,489,835.75 × 2,324,370.13 - Step 4: Simplify right side
3,978,125.76x = 12,760,410,235,906.15 - Step 5: Solve for x
x = 12,760,410,235,906.15/3,978,125.76 - Step 6: Final answer
x = 3,207,643.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.