Finding the Fourth Proportional to 1,054,128.75, 1,581,236.87 and 306,174.75
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Solution
The fourth proportional to 1,054,128.75, 1,581,236.87 and 306,174.75 is: 459,274.83
Step by Step Solution
- Step 1: Write the proportion equation
1,054,128.75 : 1,581,236.87 = 306,174.75 : x - Step 2: Convert to fraction form
1,054,128.75/1,581,236.87 = 306,174.75/x - Step 3: Cross multiply
1,054,128.75x = 1,581,236.87 × 306,174.75 - Step 4: Simplify right side
1,054,128.75x = 484,134,801,832.16 - Step 5: Solve for x
x = 484,134,801,832.16/1,054,128.75 - Step 6: Final answer
x = 459,274.83
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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.