Finding the Fourth Proportional to 638,020.21, 880,487.83 and 366,137.84
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Solution
The fourth proportional to 638,020.21, 880,487.83 and 366,137.84 is: 505,281.66
Step by Step Solution
- Step 1: Write the proportion equation
638,020.21 : 880,487.83 = 366,137.84 : x - Step 2: Convert to fraction form
638,020.21/880,487.83 = 366,137.84/x - Step 3: Cross multiply
638,020.21x = 880,487.83 × 366,137.84 - Step 4: Simplify right side
638,020.21x = 322,379,912,222.49 - Step 5: Solve for x
x = 322,379,912,222.49/638,020.21 - Step 6: Final answer
x = 505,281.66
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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.