Finding the Fourth Proportional to 1,382,162.13, 1,907,538.66 and 770,370.75
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Solution
The fourth proportional to 1,382,162.13, 1,907,538.66 and 770,370.75 is: 1,063,197.98
Step by Step Solution
- Step 1: Write the proportion equation
1,382,162.13 : 1,907,538.66 = 770,370.75 : x - Step 2: Convert to fraction form
1,382,162.13/1,907,538.66 = 770,370.75/x - Step 3: Cross multiply
1,382,162.13x = 1,907,538.66 × 770,370.75 - Step 4: Simplify right side
1,382,162.13x = 1,469,511,988,158.19 - Step 5: Solve for x
x = 1,469,511,988,158.19/1,382,162.13 - Step 6: Final answer
x = 1,063,197.98
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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.