Finding the Fourth Proportional to 645,125.20, 967,687.80 and 330,197.20
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Solution
The fourth proportional to 645,125.20, 967,687.80 and 330,197.20 is: 495,295.80
Step by Step Solution
- Step 1: Write the proportion equation
645,125.20 : 967,687.80 = 330,197.20 : x - Step 2: Convert to fraction form
645,125.20/967,687.80 = 330,197.20/x - Step 3: Cross multiply
645,125.20x = 967,687.80 × 330,197.20 - Step 4: Simplify right side
645,125.20x = 319,527,802,034.16 - Step 5: Solve for x
x = 319,527,802,034.16/645,125.20 - Step 6: Final answer
x = 495,295.80
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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.