Finding the Fourth Proportional to 775,890.55, 1,163,834.74 and 243,453.12
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Solution
The fourth proportional to 775,890.55, 1,163,834.74 and 243,453.12 is: 365,179.34
Step by Step Solution
- Step 1: Write the proportion equation
775,890.55 : 1,163,834.74 = 243,453.12 : x - Step 2: Convert to fraction form
775,890.55/1,163,834.74 = 243,453.12/x - Step 3: Cross multiply
775,890.55x = 1,163,834.74 × 243,453.12 - Step 4: Simplify right side
775,890.55x = 283,339,198,617.39 - Step 5: Solve for x
x = 283,339,198,617.39/775,890.55 - Step 6: Final answer
x = 365,179.34
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1.5x scale
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.