Finding the Fourth Proportional to 1,378,394.92, 1,901,906.26 and 805,324.44
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Solution
The fourth proportional to 1,378,394.92, 1,901,906.26 and 805,324.44 is: 1,111,184.88
Step by Step Solution
- Step 1: Write the proportion equation
1,378,394.92 : 1,901,906.26 = 805,324.44 : x - Step 2: Convert to fraction form
1,378,394.92/1,901,906.26 = 805,324.44/x - Step 3: Cross multiply
1,378,394.92x = 1,901,906.26 × 805,324.44 - Step 4: Simplify right side
1,378,394.92x = 1,531,651,593,766.99 - Step 5: Solve for x
x = 1,531,651,593,766.99/1,378,394.92 - Step 6: Final answer
x = 1,111,184.88
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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.