Finding the Fourth Proportional to 3,998,534.38, 5,512,238.18 and 2,850,621.82
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Solution
The fourth proportional to 3,998,534.38, 5,512,238.18 and 2,850,621.82 is: 3,929,766.49
Step by Step Solution
- Step 1: Write the proportion equation
3,998,534.38 : 5,512,238.18 = 2,850,621.82 : x - Step 2: Convert to fraction form
3,998,534.38/5,512,238.18 = 2,850,621.82/x - Step 3: Cross multiply
3,998,534.38x = 5,512,238.18 × 2,850,621.82 - Step 4: Simplify right side
3,998,534.38x = 15,713,306,432,945.09 - Step 5: Solve for x
x = 15,713,306,432,945.09/3,998,534.38 - Step 6: Final answer
x = 3,929,766.49
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1.5x scale
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.