Finding the Fourth Proportional to 738,623.21, 1,107,912.94 and 306,297.05
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Solution
The fourth proportional to 738,623.21, 1,107,912.94 and 306,297.05 is: 459,436.50
Step by Step Solution
- Step 1: Write the proportion equation
738,623.21 : 1,107,912.94 = 306,297.05 : x - Step 2: Convert to fraction form
738,623.21/1,107,912.94 = 306,297.05/x - Step 3: Cross multiply
738,623.21x = 1,107,912.94 × 306,297.05 - Step 4: Simplify right side
738,623.21x = 339,350,458,873.52 - Step 5: Solve for x
x = 339,350,458,873.52/738,623.21 - Step 6: Final answer
x = 459,436.50
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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.