Finding the Fourth Proportional to 1,555,896.32, 2,147,107.20 and 876,819.20
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Solution
The fourth proportional to 1,555,896.32, 2,147,107.20 and 876,819.20 is: 1,209,993.75
Step by Step Solution
- Step 1: Write the proportion equation
1,555,896.32 : 2,147,107.20 = 876,819.20 : x - Step 2: Convert to fraction form
1,555,896.32/2,147,107.20 = 876,819.20/x - Step 3: Cross multiply
1,555,896.32x = 2,147,107.20 × 876,819.20 - Step 4: Simplify right side
1,555,896.32x = 1,882,624,817,418.24 - Step 5: Solve for x
x = 1,882,624,817,418.24/1,555,896.32 - Step 6: Final answer
x = 1,209,993.75
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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.