Finding the Fourth Proportional to 1,790,912.88, 2,470,660.92 and 1,209,949.02
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Solution
The fourth proportional to 1,790,912.88, 2,470,660.92 and 1,209,949.02 is: 1,669,189.94
Step by Step Solution
- Step 1: Write the proportion equation
1,790,912.88 : 2,470,660.92 = 1,209,949.02 : x - Step 2: Convert to fraction form
1,790,912.88/2,470,660.92 = 1,209,949.02/x - Step 3: Cross multiply
1,790,912.88x = 2,470,660.92 × 1,209,949.02 - Step 4: Simplify right side
1,790,912.88x = 2,989,373,758,906.30 - Step 5: Solve for x
x = 2,989,373,758,906.30/1,790,912.88 - Step 6: Final answer
x = 1,669,189.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.