Finding the Fourth Proportional to 3,457,993.96, 5,187,240.02 and 1,328,078.08
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Solution
The fourth proportional to 3,457,993.96, 5,187,240.02 and 1,328,078.08 is: 1,992,212.78
Step by Step Solution
- Step 1: Write the proportion equation
3,457,993.96 : 5,187,240.02 = 1,328,078.08 : x - Step 2: Convert to fraction form
3,457,993.96/5,187,240.02 = 1,328,078.08/x - Step 3: Cross multiply
3,457,993.96x = 5,187,240.02 × 1,328,078.08 - Step 4: Simplify right side
3,457,993.96x = 6,889,059,766,260.76 - Step 5: Solve for x
x = 6,889,059,766,260.76/3,457,993.96 - Step 6: Final answer
x = 1,992,212.78
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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.