Finding the Fourth Proportional to 1,861,121.21, 2,789,696.84 and 1,060,679.21
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Solution
The fourth proportional to 1,861,121.21, 2,789,696.84 and 1,060,679.21 is: 1,589,887.54
Step by Step Solution
- Step 1: Write the proportion equation
1,861,121.21 : 2,789,696.84 = 1,060,679.21 : x - Step 2: Convert to fraction form
1,861,121.21/2,789,696.84 = 1,060,679.21/x - Step 3: Cross multiply
1,861,121.21x = 2,789,696.84 × 1,060,679.21 - Step 4: Simplify right side
1,861,121.21x = 2,958,973,421,138.82 - Step 5: Solve for x
x = 2,958,973,421,138.82/1,861,121.21 - Step 6: Final answer
x = 1,589,887.54
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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.