Finding the Fourth Proportional to 3,471,438.87, 4,790,479.73 and 1,922,639.09
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Solution
The fourth proportional to 3,471,438.87, 4,790,479.73 and 1,922,639.09 is: 2,653,183.28
Step by Step Solution
- Step 1: Write the proportion equation
3,471,438.87 : 4,790,479.73 = 1,922,639.09 : x - Step 2: Convert to fraction form
3,471,438.87/4,790,479.73 = 1,922,639.09/x - Step 3: Cross multiply
3,471,438.87x = 4,790,479.73 × 1,922,639.09 - Step 4: Simplify right side
3,471,438.87x = 9,210,363,555,185.05 - Step 5: Solve for x
x = 9,210,363,555,185.05/3,471,438.87 - Step 6: Final answer
x = 2,653,183.28
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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.