Finding the Fourth Proportional to 505,791.19, 697,983.70 and 276,343.55
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Solution
The fourth proportional to 505,791.19, 697,983.70 and 276,343.55 is: 381,349.65
Step by Step Solution
- Step 1: Write the proportion equation
505,791.19 : 697,983.70 = 276,343.55 : x - Step 2: Convert to fraction form
505,791.19/697,983.70 = 276,343.55/x - Step 3: Cross multiply
505,791.19x = 697,983.70 × 276,343.55 - Step 4: Simplify right side
505,791.19x = 192,883,293,500.14 - Step 5: Solve for x
x = 192,883,293,500.14/505,791.19 - Step 6: Final answer
x = 381,349.65
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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.