Finding the Fourth Proportional to 1,382,240.71, 1,907,603.09 and 770,591.49
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Solution
The fourth proportional to 1,382,240.71, 1,907,603.09 and 770,591.49 is: 1,063,478.09
Step by Step Solution
- Step 1: Write the proportion equation
1,382,240.71 : 1,907,603.09 = 770,591.49 : x - Step 2: Convert to fraction form
1,382,240.71/1,907,603.09 = 770,591.49/x - Step 3: Cross multiply
1,382,240.71x = 1,907,603.09 × 770,591.49 - Step 4: Simplify right side
1,382,240.71x = 1,469,982,707,451.70 - Step 5: Solve for x
x = 1,469,982,707,451.70/1,382,240.71 - Step 6: Final answer
x = 1,063,478.09
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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.