Finding the Fourth Proportional to 3,689,396.80, 5,089,431.36 and 3,001,837.60
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Solution
The fourth proportional to 3,689,396.80, 5,089,431.36 and 3,001,837.60 is: 4,140,960.50
Step by Step Solution
- Step 1: Write the proportion equation
3,689,396.80 : 5,089,431.36 = 3,001,837.60 : x - Step 2: Convert to fraction form
3,689,396.80/5,089,431.36 = 3,001,837.60/x - Step 3: Cross multiply
3,689,396.80x = 5,089,431.36 × 3,001,837.60 - Step 4: Simplify right side
3,689,396.80x = 15,277,646,419,067.14 - Step 5: Solve for x
x = 15,277,646,419,067.14/3,689,396.80 - Step 6: Final answer
x = 4,140,960.50
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1.5x scale
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.