Finding the Fourth Proportional to 845,358.10, 1,269,163.05 and 490,626.70
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Solution
The fourth proportional to 845,358.10, 1,269,163.05 and 490,626.70 is: 736,593.50
Step by Step Solution
- Step 1: Write the proportion equation
845,358.10 : 1,269,163.05 = 490,626.70 : x - Step 2: Convert to fraction form
845,358.10/1,269,163.05 = 490,626.70/x - Step 3: Cross multiply
845,358.10x = 1,269,163.05 × 490,626.70 - Step 4: Simplify right side
845,358.10x = 622,685,278,983.44 - Step 5: Solve for x
x = 622,685,278,983.44/845,358.10 - Step 6: Final answer
x = 736,593.50
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1.5x scale
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.