Finding the Fourth Proportional to 1,382,245.26, 1,907,517.56 and 770,380.98
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Solution
The fourth proportional to 1,382,245.26, 1,907,517.56 and 770,380.98 is: 1,063,136.40
Step by Step Solution
- Step 1: Write the proportion equation
1,382,245.26 : 1,907,517.56 = 770,380.98 : x - Step 2: Convert to fraction form
1,382,245.26/1,907,517.56 = 770,380.98/x - Step 3: Cross multiply
1,382,245.26x = 1,907,517.56 × 770,380.98 - Step 4: Simplify right side
1,382,245.26x = 1,469,515,243,388.10 - Step 5: Solve for x
x = 1,469,515,243,388.10/1,382,245.26 - Step 6: Final answer
x = 1,063,136.40
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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.