Finding the Fourth Proportional to 748,711.53, 1,123,129.58 and 243,261.31
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Solution
The fourth proportional to 748,711.53, 1,123,129.58 and 243,261.31 is: 364,912.20
Step by Step Solution
- Step 1: Write the proportion equation
748,711.53 : 1,123,129.58 = 243,261.31 : x - Step 2: Convert to fraction form
748,711.53/1,123,129.58 = 243,261.31/x - Step 3: Cross multiply
748,711.53x = 1,123,129.58 × 243,261.31 - Step 4: Simplify right side
748,711.53x = 273,213,972,930.55 - Step 5: Solve for x
x = 273,213,972,930.55/748,711.53 - Step 6: Final answer
x = 364,912.20
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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.