Finding the Fourth Proportional to 397,289.80, 595,934.70 and 318,557.80
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Solution
The fourth proportional to 397,289.80, 595,934.70 and 318,557.80 is: 477,836.70
Step by Step Solution
- Step 1: Write the proportion equation
397,289.80 : 595,934.70 = 318,557.80 : x - Step 2: Convert to fraction form
397,289.80/595,934.70 = 318,557.80/x - Step 3: Cross multiply
397,289.80x = 595,934.70 × 318,557.80 - Step 4: Simplify right side
397,289.80x = 189,839,646,975.66 - Step 5: Solve for x
x = 189,839,646,975.66/397,289.80 - Step 6: Final answer
x = 477,836.70
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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.