Finding the Fourth Proportional to 1,279,245.09, 1,765,311.75 and 698,457.54
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Solution
The fourth proportional to 1,279,245.09, 1,765,311.75 and 698,457.54 is: 963,846.03
Step by Step Solution
- Step 1: Write the proportion equation
1,279,245.09 : 1,765,311.75 = 698,457.54 : x - Step 2: Convert to fraction form
1,279,245.09/1,765,311.75 = 698,457.54/x - Step 3: Cross multiply
1,279,245.09x = 1,765,311.75 × 698,457.54 - Step 4: Simplify right side
1,279,245.09x = 1,232,995,302,238.10 - Step 5: Solve for x
x = 1,232,995,302,238.10/1,279,245.09 - Step 6: Final answer
x = 963,846.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.