Finding the Fourth Proportional to 451,311.21, 622,816.83 and 247,381.70
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Solution
The fourth proportional to 451,311.21, 622,816.83 and 247,381.70 is: 341,390.77
Step by Step Solution
- Step 1: Write the proportion equation
451,311.21 : 622,816.83 = 247,381.70 : x - Step 2: Convert to fraction form
451,311.21/622,816.83 = 247,381.70/x - Step 3: Cross multiply
451,311.21x = 622,816.83 × 247,381.70 - Step 4: Simplify right side
451,311.21x = 154,073,483,079.93 - Step 5: Solve for x
x = 154,073,483,079.93/451,311.21 - Step 6: Final answer
x = 341,390.77
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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.