Finding the Fourth Proportional to 1,996,384.80, 2,990,640.60 and 1,195,286.70
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Solution
The fourth proportional to 1,996,384.80, 2,990,640.60 and 1,195,286.70 is: 1,790,573.11
Step by Step Solution
- Step 1: Write the proportion equation
1,996,384.80 : 2,990,640.60 = 1,195,286.70 : x - Step 2: Convert to fraction form
1,996,384.80/2,990,640.60 = 1,195,286.70/x - Step 3: Cross multiply
1,996,384.80x = 2,990,640.60 × 1,195,286.70 - Step 4: Simplify right side
1,996,384.80x = 3,574,672,933,660.02 - Step 5: Solve for x
x = 3,574,672,933,660.02/1,996,384.80 - Step 6: Final answer
x = 1,790,573.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.