Finding the Fourth Proportional to 3,378,861.57, 4,663,163.40 and 1,928,775.06
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Solution
The fourth proportional to 3,378,861.57, 4,663,163.40 and 1,928,775.06 is: 2,661,900.49
Step by Step Solution
- Step 1: Write the proportion equation
3,378,861.57 : 4,663,163.40 = 1,928,775.06 : x - Step 2: Convert to fraction form
3,378,861.57/4,663,163.40 = 1,928,775.06/x - Step 3: Cross multiply
3,378,861.57x = 4,663,163.40 × 1,928,775.06 - Step 4: Simplify right side
3,378,861.57x = 8,994,193,266,624.81 - Step 5: Solve for x
x = 8,994,193,266,624.81/3,378,861.57 - Step 6: Final answer
x = 2,661,900.49
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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.