Finding the Fourth Proportional to 1,659,121.60, 2,491,306.80 and 1,260,212.80
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Solution
The fourth proportional to 1,659,121.60, 2,491,306.80 and 1,260,212.80 is: 1,892,312.61
Step by Step Solution
- Step 1: Write the proportion equation
1,659,121.60 : 2,491,306.80 = 1,260,212.80 : x - Step 2: Convert to fraction form
1,659,121.60/2,491,306.80 = 1,260,212.80/x - Step 3: Cross multiply
1,659,121.60x = 2,491,306.80 × 1,260,212.80 - Step 4: Simplify right side
1,659,121.60x = 3,139,576,718,087.04 - Step 5: Solve for x
x = 3,139,576,718,087.04/1,659,121.60 - Step 6: Final answer
x = 1,892,312.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.