Finding the Fourth Proportional to 505,414.12, 697,475.94 and 279,076.84
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Solution
The fourth proportional to 505,414.12, 697,475.94 and 279,076.84 is: 385,128.50
Step by Step Solution
- Step 1: Write the proportion equation
505,414.12 : 697,475.94 = 279,076.84 : x - Step 2: Convert to fraction form
505,414.12/697,475.94 = 279,076.84/x - Step 3: Cross multiply
505,414.12x = 697,475.94 × 279,076.84 - Step 4: Simplify right side
505,414.12x = 194,649,381,311.23 - Step 5: Solve for x
x = 194,649,381,311.23/505,414.12 - Step 6: Final answer
x = 385,128.50
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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.