Finding the Fourth Proportional to 391,819.37, 587,813.63 and 121,942.19
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Solution
The fourth proportional to 391,819.37, 587,813.63 and 121,942.19 is: 182,939.61
Step by Step Solution
- Step 1: Write the proportion equation
391,819.37 : 587,813.63 = 121,942.19 : x - Step 2: Convert to fraction form
391,819.37/587,813.63 = 121,942.19/x - Step 3: Cross multiply
391,819.37x = 587,813.63 × 121,942.19 - Step 4: Simplify right side
391,819.37x = 71,679,282,213.87 - Step 5: Solve for x
x = 71,679,282,213.87/391,819.37 - Step 6: Final answer
x = 182,939.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.