Finding the Fourth Proportional to 1,920,855.24, 2,651,278.16 and 1,105,142.48
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Solution
The fourth proportional to 1,920,855.24, 2,651,278.16 and 1,105,142.48 is: 1,525,383.10
Step by Step Solution
- Step 1: Write the proportion equation
1,920,855.24 : 2,651,278.16 = 1,105,142.48 : x - Step 2: Convert to fraction form
1,920,855.24/2,651,278.16 = 1,105,142.48/x - Step 3: Cross multiply
1,920,855.24x = 2,651,278.16 × 1,105,142.48 - Step 4: Simplify right side
1,920,855.24x = 2,930,040,120,912.24 - Step 5: Solve for x
x = 2,930,040,120,912.24/1,920,855.24 - Step 6: Final answer
x = 1,525,383.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.