Finding the Fourth Proportional to 622,790.44, 859,514.28 and 381,232.62
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Solution
The fourth proportional to 622,790.44, 859,514.28 and 381,232.62 is: 526,139.87
Step by Step Solution
- Step 1: Write the proportion equation
622,790.44 : 859,514.28 = 381,232.62 : x - Step 2: Convert to fraction form
622,790.44/859,514.28 = 381,232.62/x - Step 3: Cross multiply
622,790.44x = 859,514.28 × 381,232.62 - Step 4: Simplify right side
622,790.44x = 327,674,880,891.81 - Step 5: Solve for x
x = 327,674,880,891.81/622,790.44 - Step 6: Final answer
x = 526,139.87
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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.