Finding the Fourth Proportional to 774,135.28, 1,161,277.44 and 300,857.68
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Solution
The fourth proportional to 774,135.28, 1,161,277.44 and 300,857.68 is: 451,315.48
Step by Step Solution
- Step 1: Write the proportion equation
774,135.28 : 1,161,277.44 = 300,857.68 : x - Step 2: Convert to fraction form
774,135.28/1,161,277.44 = 300,857.68/x - Step 3: Cross multiply
774,135.28x = 1,161,277.44 × 300,857.68 - Step 4: Simplify right side
774,135.28x = 349,379,236,434.74 - Step 5: Solve for x
x = 349,379,236,434.74/774,135.28 - Step 6: Final answer
x = 451,315.48
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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.