Finding the Fourth Proportional to 545,338.09, 818,173.86 and 279,286.84
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Solution
The fourth proportional to 545,338.09, 818,173.86 and 279,286.84 is: 419,015.65
Step by Step Solution
- Step 1: Write the proportion equation
545,338.09 : 818,173.86 = 279,286.84 : x - Step 2: Convert to fraction form
545,338.09/818,173.86 = 279,286.84/x - Step 3: Cross multiply
545,338.09x = 818,173.86 × 279,286.84 - Step 4: Simplify right side
545,338.09x = 228,505,191,930.00 - Step 5: Solve for x
x = 228,505,191,930.00/545,338.09 - Step 6: Final answer
x = 419,015.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.