Finding the Fourth Proportional to 1,989,912.96, 2,746,146.24 and 1,084,527.36
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Solution
The fourth proportional to 1,989,912.96, 2,746,146.24 and 1,084,527.36 is: 1,496,683.92
Step by Step Solution
- Step 1: Write the proportion equation
1,989,912.96 : 2,746,146.24 = 1,084,527.36 : x - Step 2: Convert to fraction form
1,989,912.96/2,746,146.24 = 1,084,527.36/x - Step 3: Cross multiply
1,989,912.96x = 2,746,146.24 × 1,084,527.36 - Step 4: Simplify right side
1,989,912.96x = 2,978,270,731,841.13 - Step 5: Solve for x
x = 2,978,270,731,841.13/1,989,912.96 - Step 6: Final answer
x = 1,496,683.92
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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.