Finding the Fourth Proportional to 3,478,912.60, 5,218,368.90 and 1,682,656.60
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Solution
The fourth proportional to 3,478,912.60, 5,218,368.90 and 1,682,656.60 is: 2,523,984.90
Step by Step Solution
- Step 1: Write the proportion equation
3,478,912.60 : 5,218,368.90 = 1,682,656.60 : x - Step 2: Convert to fraction form
3,478,912.60/5,218,368.90 = 1,682,656.60/x - Step 3: Cross multiply
3,478,912.60x = 5,218,368.90 × 1,682,656.60 - Step 4: Simplify right side
3,478,912.60x = 8,780,722,870,819.74 - Step 5: Solve for x
x = 8,780,722,870,819.74/3,478,912.60 - Step 6: Final answer
x = 2,523,984.90
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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.