Finding the Fourth Proportional to 1,086,936.60, 1,629,821.70 and 455,136.60
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Solution
The fourth proportional to 1,086,936.60, 1,629,821.70 and 455,136.60 is: 682,460.69
Step by Step Solution
- Step 1: Write the proportion equation
1,086,936.60 : 1,629,821.70 = 455,136.60 : x - Step 2: Convert to fraction form
1,086,936.60/1,629,821.70 = 455,136.60/x - Step 3: Cross multiply
1,086,936.60x = 1,629,821.70 × 455,136.60 - Step 4: Simplify right side
1,086,936.60x = 741,791,507,144.22 - Step 5: Solve for x
x = 741,791,507,144.22/1,086,936.60 - Step 6: Final answer
x = 682,460.69
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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.