Finding the Fourth Proportional to 1,419,136.84, 2,128,986.13 and 520,586.43
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Solution
The fourth proportional to 1,419,136.84, 2,128,986.13 and 520,586.43 is: 780,982.68
Step by Step Solution
- Step 1: Write the proportion equation
1,419,136.84 : 2,128,986.13 = 520,586.43 : x - Step 2: Convert to fraction form
1,419,136.84/2,128,986.13 = 520,586.43/x - Step 3: Cross multiply
1,419,136.84x = 2,128,986.13 × 520,586.43 - Step 4: Simplify right side
1,419,136.84x = 1,108,321,288,936.22 - Step 5: Solve for x
x = 1,108,321,288,936.22/1,419,136.84 - Step 6: Final answer
x = 780,982.68
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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.