Finding the Fourth Proportional to 2,311,183.05, 3,190,454.15 and 1,381,218.87
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Solution
The fourth proportional to 2,311,183.05, 3,190,454.15 and 1,381,218.87 is: 1,906,692.54
Step by Step Solution
- Step 1: Write the proportion equation
2,311,183.05 : 3,190,454.15 = 1,381,218.87 : x - Step 2: Convert to fraction form
2,311,183.05/3,190,454.15 = 1,381,218.87/x - Step 3: Cross multiply
2,311,183.05x = 3,190,454.15 × 1,381,218.87 - Step 4: Simplify right side
2,311,183.05x = 4,406,715,475,849.81 - Step 5: Solve for x
x = 4,406,715,475,849.81/2,311,183.05 - Step 6: Final answer
x = 1,906,692.54
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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.