Finding the Fourth Proportional to 379,765.09, 569,149.26 and 279,455.62
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Solution
The fourth proportional to 379,765.09, 569,149.26 and 279,455.62 is: 418,816.69
Step by Step Solution
- Step 1: Write the proportion equation
379,765.09 : 569,149.26 = 279,455.62 : x - Step 2: Convert to fraction form
379,765.09/569,149.26 = 279,455.62/x - Step 3: Cross multiply
379,765.09x = 569,149.26 × 279,455.62 - Step 4: Simplify right side
379,765.09x = 159,051,959,325.84 - Step 5: Solve for x
x = 159,051,959,325.84/379,765.09 - Step 6: Final answer
x = 418,816.69
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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.