Finding the Fourth Proportional to 2,102,665.20, 2,901,676.20 and 1,135,795.20
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Solution
The fourth proportional to 2,102,665.20, 2,901,676.20 and 1,135,795.20 is: 1,567,396.42
Step by Step Solution
- Step 1: Write the proportion equation
2,102,665.20 : 2,901,676.20 = 1,135,795.20 : x - Step 2: Convert to fraction form
2,102,665.20/2,901,676.20 = 1,135,795.20/x - Step 3: Cross multiply
2,102,665.20x = 2,901,676.20 × 1,135,795.20 - Step 4: Simplify right side
2,102,665.20x = 3,295,709,899,914.24 - Step 5: Solve for x
x = 3,295,709,899,914.24/2,102,665.20 - Step 6: Final answer
x = 1,567,396.42
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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.