Finding the Fourth Proportional to 505,338.24, 697,367.70 and 278,983.92
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Solution
The fourth proportional to 505,338.24, 697,367.70 and 278,983.92 is: 384,998.32
Step by Step Solution
- Step 1: Write the proportion equation
505,338.24 : 697,367.70 = 278,983.92 : x - Step 2: Convert to fraction form
505,338.24/697,367.70 = 278,983.92/x - Step 3: Cross multiply
505,338.24x = 697,367.70 × 278,983.92 - Step 4: Simplify right side
505,338.24x = 194,554,374,627.38 - Step 5: Solve for x
x = 194,554,374,627.38/505,338.24 - Step 6: Final answer
x = 384,998.32
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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.