Finding the Fourth Proportional to 1,378,760.09, 2,068,137.05 and 656,910.68
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Solution
The fourth proportional to 1,378,760.09, 2,068,137.05 and 656,910.68 is: 985,364.54
Step by Step Solution
- Step 1: Write the proportion equation
1,378,760.09 : 2,068,137.05 = 656,910.68 : x - Step 2: Convert to fraction form
1,378,760.09/2,068,137.05 = 656,910.68/x - Step 3: Cross multiply
1,378,760.09x = 2,068,137.05 × 656,910.68 - Step 4: Simplify right side
1,378,760.09x = 1,358,581,302,223.46 - Step 5: Solve for x
x = 1,358,581,302,223.46/1,378,760.09 - Step 6: Final answer
x = 985,364.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.