Finding the Fourth Proportional to 397,112.20, 595,668.30 and 355,121.80
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Solution
The fourth proportional to 397,112.20, 595,668.30 and 355,121.80 is: 532,682.70
Step by Step Solution
- Step 1: Write the proportion equation
397,112.20 : 595,668.30 = 355,121.80 : x - Step 2: Convert to fraction form
397,112.20/595,668.30 = 355,121.80/x - Step 3: Cross multiply
397,112.20x = 595,668.30 × 355,121.80 - Step 4: Simplify right side
397,112.20x = 211,534,798,898.94 - Step 5: Solve for x
x = 211,534,798,898.94/397,112.20 - Step 6: Final answer
x = 532,682.70
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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.