Finding the Fourth Proportional to 2,801,858.55, 4,202,790.99 and 780,106.92
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Solution
The fourth proportional to 2,801,858.55, 4,202,790.99 and 780,106.92 is: 1,170,161.26
Step by Step Solution
- Step 1: Write the proportion equation
2,801,858.55 : 4,202,790.99 = 780,106.92 : x - Step 2: Convert to fraction form
2,801,858.55/4,202,790.99 = 780,106.92/x - Step 3: Cross multiply
2,801,858.55x = 4,202,790.99 × 780,106.92 - Step 4: Simplify right side
2,801,858.55x = 3,278,626,334,612.65 - Step 5: Solve for x
x = 3,278,626,334,612.65/2,801,858.55 - Step 6: Final answer
x = 1,170,161.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.