Finding the Fourth Proportional to 720,136.99, 1,080,883.46 and 365,405.59
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Solution
The fourth proportional to 720,136.99, 1,080,883.46 and 365,405.59 is: 548,452.40
Step by Step Solution
- Step 1: Write the proportion equation
720,136.99 : 1,080,883.46 = 365,405.59 : x - Step 2: Convert to fraction form
720,136.99/1,080,883.46 = 365,405.59/x - Step 3: Cross multiply
720,136.99x = 1,080,883.46 × 365,405.59 - Step 4: Simplify right side
720,136.99x = 394,960,858,422.54 - Step 5: Solve for x
x = 394,960,858,422.54/720,136.99 - Step 6: Final answer
x = 548,452.40
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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.