Finding the Fourth Proportional to 505,693.14, 697,797.09 and 279,325.14
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Solution
The fourth proportional to 505,693.14, 697,797.09 and 279,325.14 is: 385,435.86
Step by Step Solution
- Step 1: Write the proportion equation
505,693.14 : 697,797.09 = 279,325.14 : x - Step 2: Convert to fraction form
505,693.14/697,797.09 = 279,325.14/x - Step 3: Cross multiply
505,693.14x = 697,797.09 × 279,325.14 - Step 4: Simplify right side
505,693.14x = 194,912,269,855.84 - Step 5: Solve for x
x = 194,912,269,855.84/505,693.14 - Step 6: Final answer
x = 385,435.86
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1.5x scale
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.