Finding the Fourth Proportional to 1,720,882.60, 2,377,246.44 and 1,378,989.70
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Solution
The fourth proportional to 1,720,882.60, 2,377,246.44 and 1,378,989.70 is: 1,904,951.77
Step by Step Solution
- Step 1: Write the proportion equation
1,720,882.60 : 2,377,246.44 = 1,378,989.70 : x - Step 2: Convert to fraction form
1,720,882.60/2,377,246.44 = 1,378,989.70/x - Step 3: Cross multiply
1,720,882.60x = 2,377,246.44 × 1,378,989.70 - Step 4: Simplify right side
1,720,882.60x = 3,278,198,355,121.67 - Step 5: Solve for x
x = 3,278,198,355,121.67/1,720,882.60 - Step 6: Final answer
x = 1,904,951.77
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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.