Finding the Fourth Proportional to 489,649.97, 675,548.21 and 274,760.21
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Solution
The fourth proportional to 489,649.97, 675,548.21 and 274,760.21 is: 379,074.39
Step by Step Solution
- Step 1: Write the proportion equation
489,649.97 : 675,548.21 = 274,760.21 : x - Step 2: Convert to fraction form
489,649.97/675,548.21 = 274,760.21/x - Step 3: Cross multiply
489,649.97x = 675,548.21 × 274,760.21 - Step 4: Simplify right side
489,649.97x = 185,613,763,293.18 - Step 5: Solve for x
x = 185,613,763,293.18/489,649.97 - Step 6: Final answer
x = 379,074.39
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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.