Finding the Fourth Proportional to 1,979,222.11, 2,731,096.34 and 1,108,105.99
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Solution
The fourth proportional to 1,979,222.11, 2,731,096.34 and 1,108,105.99 is: 1,529,057.40
Step by Step Solution
- Step 1: Write the proportion equation
1,979,222.11 : 2,731,096.34 = 1,108,105.99 : x - Step 2: Convert to fraction form
1,979,222.11/2,731,096.34 = 1,108,105.99/x - Step 3: Cross multiply
1,979,222.11x = 2,731,096.34 × 1,108,105.99 - Step 4: Simplify right side
1,979,222.11x = 3,026,344,205,408.20 - Step 5: Solve for x
x = 3,026,344,205,408.20/1,979,222.11 - Step 6: Final answer
x = 1,529,057.40
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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.