Finding the Fourth Proportional to 1,215,232.75, 1,677,021.24 and 678,688.75
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Solution
The fourth proportional to 1,215,232.75, 1,677,021.24 and 678,688.75 is: 936,590.50
Step by Step Solution
- Step 1: Write the proportion equation
1,215,232.75 : 1,677,021.24 = 678,688.75 : x - Step 2: Convert to fraction form
1,215,232.75/1,677,021.24 = 678,688.75/x - Step 3: Cross multiply
1,215,232.75x = 1,677,021.24 × 678,688.75 - Step 4: Simplify right side
1,215,232.75x = 1,138,175,449,099.05 - Step 5: Solve for x
x = 1,138,175,449,099.05/1,215,232.75 - Step 6: Final answer
x = 936,590.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.