Finding the Fourth Proportional to 993,327.70, 1,489,991.55 and 394,431.70
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Solution
The fourth proportional to 993,327.70, 1,489,991.55 and 394,431.70 is: 591,647.55
Step by Step Solution
- Step 1: Write the proportion equation
993,327.70 : 1,489,991.55 = 394,431.70 : x - Step 2: Convert to fraction form
993,327.70/1,489,991.55 = 394,431.70/x - Step 3: Cross multiply
993,327.70x = 1,489,991.55 × 394,431.70 - Step 4: Simplify right side
993,327.70x = 587,699,900,052.14 - Step 5: Solve for x
x = 587,699,900,052.14/993,327.70 - Step 6: Final answer
x = 591,647.55
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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.