Finding the Fourth Proportional to 489,236.97, 675,220.82 and 298,361.09
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Solution
The fourth proportional to 489,236.97, 675,220.82 and 298,361.09 is: 411,783.30
Step by Step Solution
- Step 1: Write the proportion equation
489,236.97 : 675,220.82 = 298,361.09 : x - Step 2: Convert to fraction form
489,236.97/675,220.82 = 298,361.09/x - Step 3: Cross multiply
489,236.97x = 675,220.82 × 298,361.09 - Step 4: Simplify right side
489,236.97x = 201,459,614,977.98 - Step 5: Solve for x
x = 201,459,614,977.98/489,236.97 - Step 6: Final answer
x = 411,783.30
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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.