Finding the Fourth Proportional to 2,639,439.84, 3,959,228.49 and 842,320.92
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Solution
The fourth proportional to 2,639,439.84, 3,959,228.49 and 842,320.92 is: 1,263,503.31
Step by Step Solution
- Step 1: Write the proportion equation
2,639,439.84 : 3,959,228.49 = 842,320.92 : x - Step 2: Convert to fraction form
2,639,439.84/3,959,228.49 = 842,320.92/x - Step 3: Cross multiply
2,639,439.84x = 3,959,228.49 × 842,320.92 - Step 4: Simplify right side
2,639,439.84x = 3,334,940,984,187.01 - Step 5: Solve for x
x = 3,334,940,984,187.01/2,639,439.84 - Step 6: Final answer
x = 1,263,503.31
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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.