Finding the Fourth Proportional to 1,568,999.70, 2,353,499.55 and 431,759.70
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Solution
The fourth proportional to 1,568,999.70, 2,353,499.55 and 431,759.70 is: 647,639.55
Step by Step Solution
- Step 1: Write the proportion equation
1,568,999.70 : 2,353,499.55 = 431,759.70 : x - Step 2: Convert to fraction form
1,568,999.70/2,353,499.55 = 431,759.70/x - Step 3: Cross multiply
1,568,999.70x = 2,353,499.55 × 431,759.70 - Step 4: Simplify right side
1,568,999.70x = 1,016,146,259,658.13 - Step 5: Solve for x
x = 1,016,146,259,658.13/1,568,999.70 - Step 6: Final answer
x = 647,639.55
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1.5x scale
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.