Finding the Fourth Proportional to 1,313,091.64, 1,812,205.77 and 769,683.99
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Solution
The fourth proportional to 1,313,091.64, 1,812,205.77 and 769,683.99 is: 1,062,245.56
Step by Step Solution
- Step 1: Write the proportion equation
1,313,091.64 : 1,812,205.77 = 769,683.99 : x - Step 2: Convert to fraction form
1,313,091.64/1,812,205.77 = 769,683.99/x - Step 3: Cross multiply
1,313,091.64x = 1,812,205.77 × 769,683.99 - Step 4: Simplify right side
1,313,091.64x = 1,394,825,767,754.62 - Step 5: Solve for x
x = 1,394,825,767,754.62/1,313,091.64 - Step 6: Final answer
x = 1,062,245.56
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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.