Finding the Fourth Proportional to 1,311,984.36, 1,810,541.70 and 760,806.90
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Solution
The fourth proportional to 1,311,984.36, 1,810,541.70 and 760,806.90 is: 1,049,915.43
Step by Step Solution
- Step 1: Write the proportion equation
1,311,984.36 : 1,810,541.70 = 760,806.90 : x - Step 2: Convert to fraction form
1,311,984.36/1,810,541.70 = 760,806.90/x - Step 3: Cross multiply
1,311,984.36x = 1,810,541.70 × 760,806.90 - Step 4: Simplify right side
1,311,984.36x = 1,377,472,618,097.73 - Step 5: Solve for x
x = 1,377,472,618,097.73/1,311,984.36 - Step 6: Final answer
x = 1,049,915.43
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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.