Finding the Fourth Proportional to 716,847.37, 989,249.69 and 394,555.19
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Solution
The fourth proportional to 716,847.37, 989,249.69 and 394,555.19 is: 544,486.33
Step by Step Solution
- Step 1: Write the proportion equation
716,847.37 : 989,249.69 = 394,555.19 : x - Step 2: Convert to fraction form
716,847.37/989,249.69 = 394,555.19/x - Step 3: Cross multiply
716,847.37x = 989,249.69 × 394,555.19 - Step 4: Simplify right side
716,847.37x = 390,313,595,435.53 - Step 5: Solve for x
x = 390,313,595,435.53/716,847.37 - Step 6: Final answer
x = 544,486.33
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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.