Finding the Fourth Proportional to 492,912.45, 739,368.68 and 324,622.80
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Solution
The fourth proportional to 492,912.45, 739,368.68 and 324,622.80 is: 486,934.20
Step by Step Solution
- Step 1: Write the proportion equation
492,912.45 : 739,368.68 = 324,622.80 : x - Step 2: Convert to fraction form
492,912.45/739,368.68 = 324,622.80/x - Step 3: Cross multiply
492,912.45x = 739,368.68 × 324,622.80 - Step 4: Simplify right side
492,912.45x = 240,015,929,510.79 - Step 5: Solve for x
x = 240,015,929,510.79/492,912.45 - Step 6: Final answer
x = 486,934.20
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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.