Finding the Fourth Proportional to 2,639,455.92, 3,959,363.61 and 842,474.66
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Solution
The fourth proportional to 2,639,455.92, 3,959,363.61 and 842,474.66 is: 1,263,769.35
Step by Step Solution
- Step 1: Write the proportion equation
2,639,455.92 : 3,959,363.61 = 842,474.66 : x - Step 2: Convert to fraction form
2,639,455.92/3,959,363.61 = 842,474.66/x - Step 3: Cross multiply
2,639,455.92x = 3,959,363.61 × 842,474.66 - Step 4: Simplify right side
2,639,455.92x = 3,335,663,491,354.31 - Step 5: Solve for x
x = 3,335,663,491,354.31/2,639,455.92 - Step 6: Final answer
x = 1,263,769.35
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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.