Finding the Fourth Proportional to 454,877.20, 682,315.80 and 419,447.80
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Solution
The fourth proportional to 454,877.20, 682,315.80 and 419,447.80 is: 629,171.70
Step by Step Solution
- Step 1: Write the proportion equation
454,877.20 : 682,315.80 = 419,447.80 : x - Step 2: Convert to fraction form
454,877.20/682,315.80 = 419,447.80/x - Step 3: Cross multiply
454,877.20x = 682,315.80 × 419,447.80 - Step 4: Simplify right side
454,877.20x = 286,195,861,215.24 - Step 5: Solve for x
x = 286,195,861,215.24/454,877.20 - Step 6: Final answer
x = 629,171.70
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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.