Finding the Fourth Proportional to 3,120,794.57, 4,305,479.99 and 1,958,562.60
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Solution
The fourth proportional to 3,120,794.57, 4,305,479.99 and 1,958,562.60 is: 2,702,052.92
Step by Step Solution
- Step 1: Write the proportion equation
3,120,794.57 : 4,305,479.99 = 1,958,562.60 : x - Step 2: Convert to fraction form
3,120,794.57/4,305,479.99 = 1,958,562.60/x - Step 3: Cross multiply
3,120,794.57x = 4,305,479.99 × 1,958,562.60 - Step 4: Simplify right side
3,120,794.57x = 8,432,552,073,669.56 - Step 5: Solve for x
x = 8,432,552,073,669.56/3,120,794.57 - Step 6: Final answer
x = 2,702,052.92
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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.