Finding the Fourth Proportional to 1,997,903.40, 2,990,950.20 and 1,324,744.80
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Solution
The fourth proportional to 1,997,903.40, 2,990,950.20 and 1,324,744.80 is: 1,983,201.85
Step by Step Solution
- Step 1: Write the proportion equation
1,997,903.40 : 2,990,950.20 = 1,324,744.80 : x - Step 2: Convert to fraction form
1,997,903.40/2,990,950.20 = 1,324,744.80/x - Step 3: Cross multiply
1,997,903.40x = 2,990,950.20 × 1,324,744.80 - Step 4: Simplify right side
1,997,903.40x = 3,962,245,724,508.96 - Step 5: Solve for x
x = 3,962,245,724,508.96/1,997,903.40 - Step 6: Final answer
x = 1,983,201.85
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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.