Finding the Fourth Proportional to 1,382,239.26, 1,907,509.28 and 770,374.98
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Solution
The fourth proportional to 1,382,239.26, 1,907,509.28 and 770,374.98 is: 1,063,128.12
Step by Step Solution
- Step 1: Write the proportion equation
1,382,239.26 : 1,907,509.28 = 770,374.98 : x - Step 2: Convert to fraction form
1,382,239.26/1,907,509.28 = 770,374.98/x - Step 3: Cross multiply
1,382,239.26x = 1,907,509.28 × 770,374.98 - Step 4: Simplify right side
1,382,239.26x = 1,469,497,419,577.94 - Step 5: Solve for x
x = 1,469,497,419,577.94/1,382,239.26 - Step 6: Final answer
x = 1,063,128.12
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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.