Finding the Fourth Proportional to 831,229.26, 1,244,595.07 and 431,028.73
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Solution
The fourth proportional to 831,229.26, 1,244,595.07 and 431,028.73 is: 645,376.98
Step by Step Solution
- Step 1: Write the proportion equation
831,229.26 : 1,244,595.07 = 431,028.73 : x - Step 2: Convert to fraction form
831,229.26/1,244,595.07 = 431,028.73/x - Step 3: Cross multiply
831,229.26x = 1,244,595.07 × 431,028.73 - Step 4: Simplify right side
831,229.26x = 536,456,232,386.36 - Step 5: Solve for x
x = 536,456,232,386.36/831,229.26 - Step 6: Final answer
x = 645,376.98
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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.