Finding the Fourth Proportional to 2,043,138.72, 2,819,658.78 and 1,125,367.68
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Solution
The fourth proportional to 2,043,138.72, 2,819,658.78 and 1,125,367.68 is: 1,553,077.54
Step by Step Solution
- Step 1: Write the proportion equation
2,043,138.72 : 2,819,658.78 = 1,125,367.68 : x - Step 2: Convert to fraction form
2,043,138.72/2,819,658.78 = 1,125,367.68/x - Step 3: Cross multiply
2,043,138.72x = 2,819,658.78 × 1,125,367.68 - Step 4: Simplify right side
2,043,138.72x = 3,173,152,859,640.23 - Step 5: Solve for x
x = 3,173,152,859,640.23/2,043,138.72 - Step 6: Final answer
x = 1,553,077.54
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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.