Finding the Fourth Proportional to 419,193.11, 628,887.29 and 119,677.79
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Solution
The fourth proportional to 419,193.11, 628,887.29 and 119,677.79 is: 179,544.56
Step by Step Solution
- Step 1: Write the proportion equation
419,193.11 : 628,887.29 = 119,677.79 : x - Step 2: Convert to fraction form
419,193.11/628,887.29 = 119,677.79/x - Step 3: Cross multiply
419,193.11x = 628,887.29 × 119,677.79 - Step 4: Simplify right side
419,193.11x = 75,263,842,000.12 - Step 5: Solve for x
x = 75,263,842,000.12/419,193.11 - Step 6: Final answer
x = 179,544.56
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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.