Finding the Fourth Proportional to 816,102.20, 1,224,153.30 and 727,455.80
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Solution
The fourth proportional to 816,102.20, 1,224,153.30 and 727,455.80 is: 1,091,183.70
Step by Step Solution
- Step 1: Write the proportion equation
816,102.20 : 1,224,153.30 = 727,455.80 : x - Step 2: Convert to fraction form
816,102.20/1,224,153.30 = 727,455.80/x - Step 3: Cross multiply
816,102.20x = 1,224,153.30 × 727,455.80 - Step 4: Simplify right side
816,102.20x = 890,517,418,174.14 - Step 5: Solve for x
x = 890,517,418,174.14/816,102.20 - Step 6: Final answer
x = 1,091,183.70
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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.