Finding the Fourth Proportional to 505,679.18, 697,837.23 and 279,324.68
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Solution
The fourth proportional to 505,679.18, 697,837.23 and 279,324.68 is: 385,468.03
Step by Step Solution
- Step 1: Write the proportion equation
505,679.18 : 697,837.23 = 279,324.68 : x - Step 2: Convert to fraction form
505,679.18/697,837.23 = 279,324.68/x - Step 3: Cross multiply
505,679.18x = 697,837.23 × 279,324.68 - Step 4: Simplify right side
505,679.18x = 194,923,157,472.65 - Step 5: Solve for x
x = 194,923,157,472.65/505,679.18 - Step 6: Final answer
x = 385,468.03
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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.