Finding the Fourth Proportional to 1,260,321.80, 1,888,754.70 and 809,659.40
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Solution
The fourth proportional to 1,260,321.80, 1,888,754.70 and 809,659.40 is: 1,213,378.99
Step by Step Solution
- Step 1: Write the proportion equation
1,260,321.80 : 1,888,754.70 = 809,659.40 : x - Step 2: Convert to fraction form
1,260,321.80/1,888,754.70 = 809,659.40/x - Step 3: Cross multiply
1,260,321.80x = 1,888,754.70 × 809,659.40 - Step 4: Simplify right side
1,260,321.80x = 1,529,247,997,149.18 - Step 5: Solve for x
x = 1,529,247,997,149.18/1,260,321.80 - Step 6: Final answer
x = 1,213,378.99
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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.