Finding the Fourth Proportional to 1,382,281.38, 1,907,557.20 and 770,472.99
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Solution
The fourth proportional to 1,382,281.38, 1,907,557.20 and 770,472.99 is: 1,063,257.68
Step by Step Solution
- Step 1: Write the proportion equation
1,382,281.38 : 1,907,557.20 = 770,472.99 : x - Step 2: Convert to fraction form
1,382,281.38/1,907,557.20 = 770,472.99/x - Step 3: Cross multiply
1,382,281.38x = 1,907,557.20 × 770,472.99 - Step 4: Simplify right side
1,382,281.38x = 1,469,721,289,942.24 - Step 5: Solve for x
x = 1,469,721,289,942.24/1,382,281.38 - Step 6: Final answer
x = 1,063,257.68
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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.