Finding the Fourth Proportional to 2,990,556.80, 4,485,835.20 and 1,396,233.80
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Solution
The fourth proportional to 2,990,556.80, 4,485,835.20 and 1,396,233.80 is: 2,094,350.70
Step by Step Solution
- Step 1: Write the proportion equation
2,990,556.80 : 4,485,835.20 = 1,396,233.80 : x - Step 2: Convert to fraction form
2,990,556.80/4,485,835.20 = 1,396,233.80/x - Step 3: Cross multiply
2,990,556.80x = 4,485,835.20 × 1,396,233.80 - Step 4: Simplify right side
2,990,556.80x = 6,263,274,727,469.76 - Step 5: Solve for x
x = 6,263,274,727,469.76/2,990,556.80 - Step 6: Final answer
x = 2,094,350.70
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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.