Finding the Fourth Proportional to 1,080,190.20, 1,620,285.30 and 880,735.80
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Solution
The fourth proportional to 1,080,190.20, 1,620,285.30 and 880,735.80 is: 1,321,103.70
Step by Step Solution
- Step 1: Write the proportion equation
1,080,190.20 : 1,620,285.30 = 880,735.80 : x - Step 2: Convert to fraction form
1,080,190.20/1,620,285.30 = 880,735.80/x - Step 3: Cross multiply
1,080,190.20x = 1,620,285.30 × 880,735.80 - Step 4: Simplify right side
1,080,190.20x = 1,427,043,269,923.74 - Step 5: Solve for x
x = 1,427,043,269,923.74/1,080,190.20 - Step 6: Final answer
x = 1,321,103.70
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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.