Finding the Fourth Proportional to 1,165,912.07, 1,608,916.16 and 649,639.28
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Solution
The fourth proportional to 1,165,912.07, 1,608,916.16 and 649,639.28 is: 896,478.52
Step by Step Solution
- Step 1: Write the proportion equation
1,165,912.07 : 1,608,916.16 = 649,639.28 : x - Step 2: Convert to fraction form
1,165,912.07/1,608,916.16 = 649,639.28/x - Step 3: Cross multiply
1,165,912.07x = 1,608,916.16 × 649,639.28 - Step 4: Simplify right side
1,165,912.07x = 1,045,215,124,469.99 - Step 5: Solve for x
x = 1,045,215,124,469.99/1,165,912.07 - Step 6: Final answer
x = 896,478.52
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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.