Finding the Fourth Proportional to 831,273.44, 1,244,657.91 and 431,074.99
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Solution
The fourth proportional to 831,273.44, 1,244,657.91 and 431,074.99 is: 645,444.52
Step by Step Solution
- Step 1: Write the proportion equation
831,273.44 : 1,244,657.91 = 431,074.99 : x - Step 2: Convert to fraction form
831,273.44/1,244,657.91 = 431,074.99/x - Step 3: Cross multiply
831,273.44x = 1,244,657.91 × 431,074.99 - Step 4: Simplify right side
831,273.44x = 536,540,889,883.38 - Step 5: Solve for x
x = 536,540,889,883.38/831,273.44 - Step 6: Final answer
x = 645,444.52
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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.