Finding the Fourth Proportional to 1,890,914.70, 2,836,396.68 and 628,742.34
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Solution
The fourth proportional to 1,890,914.70, 2,836,396.68 and 628,742.34 is: 943,121.70
Step by Step Solution
- Step 1: Write the proportion equation
1,890,914.70 : 2,836,396.68 = 628,742.34 : x - Step 2: Convert to fraction form
1,890,914.70/2,836,396.68 = 628,742.34/x - Step 3: Cross multiply
1,890,914.70x = 2,836,396.68 × 628,742.34 - Step 4: Simplify right side
1,890,914.70x = 1,783,362,685,751.43 - Step 5: Solve for x
x = 1,783,362,685,751.43/1,890,914.70 - Step 6: Final answer
x = 943,121.70
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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.