Finding the Fourth Proportional to 2,280,481.28, 3,421,239.68 and 1,214,961.92
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Solution
The fourth proportional to 2,280,481.28, 3,421,239.68 and 1,214,961.92 is: 1,822,718.72
Step by Step Solution
- Step 1: Write the proportion equation
2,280,481.28 : 3,421,239.68 = 1,214,961.92 : x - Step 2: Convert to fraction form
2,280,481.28/3,421,239.68 = 1,214,961.92/x - Step 3: Cross multiply
2,280,481.28x = 3,421,239.68 × 1,214,961.92 - Step 4: Simplify right side
2,280,481.28x = 4,156,675,930,392.99 - Step 5: Solve for x
x = 4,156,675,930,392.99/2,280,481.28 - Step 6: Final answer
x = 1,822,718.72
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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.