Finding the Fourth Proportional to 3,176,193.12, 4,383,138.24 and 1,725,888.72
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Solution
The fourth proportional to 3,176,193.12, 4,383,138.24 and 1,725,888.72 is: 2,381,721.94
Step by Step Solution
- Step 1: Write the proportion equation
3,176,193.12 : 4,383,138.24 = 1,725,888.72 : x - Step 2: Convert to fraction form
3,176,193.12/4,383,138.24 = 1,725,888.72/x - Step 3: Cross multiply
3,176,193.12x = 4,383,138.24 × 1,725,888.72 - Step 4: Simplify right side
3,176,193.12x = 7,564,808,846,616.65 - Step 5: Solve for x
x = 7,564,808,846,616.65/3,176,193.12 - Step 6: Final answer
x = 2,381,721.94
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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.