Finding the Fourth Proportional to 855,758.87, 1,283,840.75 and 279,379.07
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Solution
The fourth proportional to 855,758.87, 1,283,840.75 and 279,379.07 is: 419,134.70
Step by Step Solution
- Step 1: Write the proportion equation
855,758.87 : 1,283,840.75 = 279,379.07 : x - Step 2: Convert to fraction form
855,758.87/1,283,840.75 = 279,379.07/x - Step 3: Cross multiply
855,758.87x = 1,283,840.75 × 279,379.07 - Step 4: Simplify right side
855,758.87x = 358,678,233,856.75 - Step 5: Solve for x
x = 358,678,233,856.75/855,758.87 - Step 6: Final answer
x = 419,134.70
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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.