Finding the Fourth Proportional to 3,138,542.57, 4,709,609.92 and 1,219,205.05
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Solution
The fourth proportional to 3,138,542.57, 4,709,609.92 and 1,219,205.05 is: 1,829,505.27
Step by Step Solution
- Step 1: Write the proportion equation
3,138,542.57 : 4,709,609.92 = 1,219,205.05 : x - Step 2: Convert to fraction form
3,138,542.57/4,709,609.92 = 1,219,205.05/x - Step 3: Cross multiply
3,138,542.57x = 4,709,609.92 × 1,219,205.05 - Step 4: Simplify right side
3,138,542.57x = 5,741,980,180,886.05 - Step 5: Solve for x
x = 5,741,980,180,886.05/3,138,542.57 - Step 6: Final answer
x = 1,829,505.27
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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.