Finding the Fourth Proportional to 820,137.23, 1,230,205.84 and 755,183.33
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Solution
The fourth proportional to 820,137.23, 1,230,205.84 and 755,183.33 is: 1,132,774.99
Step by Step Solution
- Step 1: Write the proportion equation
820,137.23 : 1,230,205.84 = 755,183.33 : x - Step 2: Convert to fraction form
820,137.23/1,230,205.84 = 755,183.33/x - Step 3: Cross multiply
820,137.23x = 1,230,205.84 × 755,183.33 - Step 4: Simplify right side
820,137.23x = 929,030,934,797.66 - Step 5: Solve for x
x = 929,030,934,797.66/820,137.23 - Step 6: Final answer
x = 1,132,774.99
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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.