Finding the Fourth Proportional to 492,122.40, 738,183.60 and 305,239.20
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Solution
The fourth proportional to 492,122.40, 738,183.60 and 305,239.20 is: 457,858.80
Step by Step Solution
- Step 1: Write the proportion equation
492,122.40 : 738,183.60 = 305,239.20 : x - Step 2: Convert to fraction form
492,122.40/738,183.60 = 305,239.20/x - Step 3: Cross multiply
492,122.40x = 738,183.60 × 305,239.20 - Step 4: Simplify right side
492,122.40x = 225,322,571,517.12 - Step 5: Solve for x
x = 225,322,571,517.12/492,122.40 - Step 6: Final answer
x = 457,858.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.