Finding the Fourth Proportional to 505,499.68, 697,586.88 and 279,145.12
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Solution
The fourth proportional to 505,499.68, 697,586.88 and 279,145.12 is: 385,218.79
Step by Step Solution
- Step 1: Write the proportion equation
505,499.68 : 697,586.88 = 279,145.12 : x - Step 2: Convert to fraction form
505,499.68/697,586.88 = 279,145.12/x - Step 3: Cross multiply
505,499.68x = 697,586.88 × 279,145.12 - Step 4: Simplify right side
505,499.68x = 194,727,973,328.03 - Step 5: Solve for x
x = 194,727,973,328.03/505,499.68 - Step 6: Final answer
x = 385,218.79
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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.