Finding the Fourth Proportional to 1,089,982.62, 1,635,236.49 and 342,028.62
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Solution
The fourth proportional to 1,089,982.62, 1,635,236.49 and 342,028.62 is: 513,125.32
Step by Step Solution
- Step 1: Write the proportion equation
1,089,982.62 : 1,635,236.49 = 342,028.62 : x - Step 2: Convert to fraction form
1,089,982.62/1,635,236.49 = 342,028.62/x - Step 3: Cross multiply
1,089,982.62x = 1,635,236.49 × 342,028.62 - Step 4: Simplify right side
1,089,982.62x = 559,297,680,048.34 - Step 5: Solve for x
x = 559,297,680,048.34/1,089,982.62 - Step 6: Final answer
x = 513,125.32
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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.