Finding the Fourth Proportional to 3,998,541.75, 5,512,248.36 and 2,850,629.19
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Solution
The fourth proportional to 3,998,541.75, 5,512,248.36 and 2,850,629.19 is: 3,929,776.67
Step by Step Solution
- Step 1: Write the proportion equation
3,998,541.75 : 5,512,248.36 = 2,850,629.19 : x - Step 2: Convert to fraction form
3,998,541.75/5,512,248.36 = 2,850,629.19/x - Step 3: Cross multiply
3,998,541.75x = 5,512,248.36 × 2,850,629.19 - Step 4: Simplify right side
3,998,541.75x = 15,713,376,077,545.63 - Step 5: Solve for x
x = 15,713,376,077,545.63/3,998,541.75 - Step 6: Final answer
x = 3,929,776.67
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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.