Finding the Fourth Proportional to 682,991.87, 942,847.70 and 396,456.80
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Solution
The fourth proportional to 682,991.87, 942,847.70 and 396,456.80 is: 547,295.50
Step by Step Solution
- Step 1: Write the proportion equation
682,991.87 : 942,847.70 = 396,456.80 : x - Step 2: Convert to fraction form
682,991.87/942,847.70 = 396,456.80/x - Step 3: Cross multiply
682,991.87x = 942,847.70 × 396,456.80 - Step 4: Simplify right side
682,991.87x = 373,798,375,332.84 - Step 5: Solve for x
x = 373,798,375,332.84/682,991.87 - Step 6: Final answer
x = 547,295.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.