Finding the Fourth Proportional to 831,230.26, 1,244,596.57 and 431,029.73
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Solution
The fourth proportional to 831,230.26, 1,244,596.57 and 431,029.73 is: 645,378.48
Step by Step Solution
- Step 1: Write the proportion equation
831,230.26 : 1,244,596.57 = 431,029.73 : x - Step 2: Convert to fraction form
831,230.26/1,244,596.57 = 431,029.73/x - Step 3: Cross multiply
831,230.26x = 1,244,596.57 × 431,029.73 - Step 4: Simplify right side
831,230.26x = 536,458,123,526.03 - Step 5: Solve for x
x = 536,458,123,526.03/831,230.26 - Step 6: Final answer
x = 645,378.48
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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.