Finding the Fourth Proportional to 759,434.24, 1,139,198.34 and 279,791.12
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Solution
The fourth proportional to 759,434.24, 1,139,198.34 and 279,791.12 is: 419,703.99
Step by Step Solution
- Step 1: Write the proportion equation
759,434.24 : 1,139,198.34 = 279,791.12 : x - Step 2: Convert to fraction form
759,434.24/1,139,198.34 = 279,791.12/x - Step 3: Cross multiply
759,434.24x = 1,139,198.34 × 279,791.12 - Step 4: Simplify right side
759,434.24x = 318,737,579,450.74 - Step 5: Solve for x
x = 318,737,579,450.74/759,434.24 - Step 6: Final answer
x = 419,703.99
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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.