Finding the Fourth Proportional to 1,340,786.12, 1,850,175.42 and 789,414.80
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Solution
The fourth proportional to 1,340,786.12, 1,850,175.42 and 789,414.80 is: 1,089,328.00
Step by Step Solution
- Step 1: Write the proportion equation
1,340,786.12 : 1,850,175.42 = 789,414.80 : x - Step 2: Convert to fraction form
1,340,786.12/1,850,175.42 = 789,414.80/x - Step 3: Cross multiply
1,340,786.12x = 1,850,175.42 × 789,414.80 - Step 4: Simplify right side
1,340,786.12x = 1,460,555,859,144.22 - Step 5: Solve for x
x = 1,460,555,859,144.22/1,340,786.12 - Step 6: Final answer
x = 1,089,328.00
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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.