Finding the Fourth Proportional to 2,231,505.75, 3,079,466.42 and 1,212,915.99
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Solution
The fourth proportional to 2,231,505.75, 3,079,466.42 and 1,212,915.99 is: 1,673,817.80
Step by Step Solution
- Step 1: Write the proportion equation
2,231,505.75 : 3,079,466.42 = 1,212,915.99 : x - Step 2: Convert to fraction form
2,231,505.75/3,079,466.42 = 1,212,915.99/x - Step 3: Cross multiply
2,231,505.75x = 3,079,466.42 × 1,212,915.99 - Step 4: Simplify right side
2,231,505.75x = 3,735,134,055,421.48 - Step 5: Solve for x
x = 3,735,134,055,421.48/2,231,505.75 - Step 6: Final answer
x = 1,673,817.80
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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.