Finding the Fourth Proportional to 505,958.16, 698,236.71 and 276,528.18
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Solution
The fourth proportional to 505,958.16, 698,236.71 and 276,528.18 is: 381,616.79
Step by Step Solution
- Step 1: Write the proportion equation
505,958.16 : 698,236.71 = 276,528.18 : x - Step 2: Convert to fraction form
505,958.16/698,236.71 = 276,528.18/x - Step 3: Cross multiply
505,958.16x = 698,236.71 × 276,528.18 - Step 4: Simplify right side
505,958.16x = 193,082,126,625.49 - Step 5: Solve for x
x = 193,082,126,625.49/505,958.16 - Step 6: Final answer
x = 381,616.79
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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.