Finding the Fourth Proportional to 920,120.41, 1,378,184.97 and 445,811.14
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Solution
The fourth proportional to 920,120.41, 1,378,184.97 and 445,811.14 is: 667,749.79
Step by Step Solution
- Step 1: Write the proportion equation
920,120.41 : 1,378,184.97 = 445,811.14 : x - Step 2: Convert to fraction form
920,120.41/1,378,184.97 = 445,811.14/x - Step 3: Cross multiply
920,120.41x = 1,378,184.97 × 445,811.14 - Step 4: Simplify right side
920,120.41x = 614,410,205,715.64 - Step 5: Solve for x
x = 614,410,205,715.64/920,120.41 - Step 6: Final answer
x = 667,749.79
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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.