Finding the Fourth Proportional to 505,823.21, 698,027.85 and 276,375.59
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Solution
The fourth proportional to 505,823.21, 698,027.85 and 276,375.59 is: 381,393.84
Step by Step Solution
- Step 1: Write the proportion equation
505,823.21 : 698,027.85 = 276,375.59 : x - Step 2: Convert to fraction form
505,823.21/698,027.85 = 276,375.59/x - Step 3: Cross multiply
505,823.21x = 698,027.85 × 276,375.59 - Step 4: Simplify right side
505,823.21x = 192,917,858,880.18 - Step 5: Solve for x
x = 192,917,858,880.18/505,823.21 - Step 6: Final answer
x = 381,393.84
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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.