Finding the Fourth Proportional to 858,950.19, 1,288,212.39 and 290,318.66
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Solution
The fourth proportional to 858,950.19, 1,288,212.39 and 290,318.66 is: 435,406.03
Step by Step Solution
- Step 1: Write the proportion equation
858,950.19 : 1,288,212.39 = 290,318.66 : x - Step 2: Convert to fraction form
858,950.19/1,288,212.39 = 290,318.66/x - Step 3: Cross multiply
858,950.19x = 1,288,212.39 × 290,318.66 - Step 4: Simplify right side
858,950.19x = 373,992,093,408.60 - Step 5: Solve for x
x = 373,992,093,408.60/858,950.19 - Step 6: Final answer
x = 435,406.03
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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.