Finding the Fourth Proportional to 816,136.20, 1,224,204.30 and 727,489.80
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Solution
The fourth proportional to 816,136.20, 1,224,204.30 and 727,489.80 is: 1,091,234.70
Step by Step Solution
- Step 1: Write the proportion equation
816,136.20 : 1,224,204.30 = 727,489.80 : x - Step 2: Convert to fraction form
816,136.20/1,224,204.30 = 727,489.80/x - Step 3: Cross multiply
816,136.20x = 1,224,204.30 × 727,489.80 - Step 4: Simplify right side
816,136.20x = 890,596,141,366.14 - Step 5: Solve for x
x = 890,596,141,366.14/816,136.20 - Step 6: Final answer
x = 1,091,234.70
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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.