Finding the Fourth Proportional to 1,340,211.80, 2,010,414.90 and 806,583.80
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Solution
The fourth proportional to 1,340,211.80, 2,010,414.90 and 806,583.80 is: 1,209,934.20
Step by Step Solution
- Step 1: Write the proportion equation
1,340,211.80 : 2,010,414.90 = 806,583.80 : x - Step 2: Convert to fraction form
1,340,211.80/2,010,414.90 = 806,583.80/x - Step 3: Cross multiply
1,340,211.80x = 2,010,414.90 × 806,583.80 - Step 4: Simplify right side
1,340,211.80x = 1,621,568,089,618.62 - Step 5: Solve for x
x = 1,621,568,089,618.62/1,340,211.80 - Step 6: Final answer
x = 1,209,934.20
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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.