Finding the Fourth Proportional to 393,496.26, 589,022.62 and 213,133.74
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Solution
The fourth proportional to 393,496.26, 589,022.62 and 213,133.74 is: 319,038.85
Step by Step Solution
- Step 1: Write the proportion equation
393,496.26 : 589,022.62 = 213,133.74 : x - Step 2: Convert to fraction form
393,496.26/589,022.62 = 213,133.74/x - Step 3: Cross multiply
393,496.26x = 589,022.62 × 213,133.74 - Step 4: Simplify right side
393,496.26x = 125,540,593,945.20 - Step 5: Solve for x
x = 125,540,593,945.20/393,496.26 - Step 6: Final answer
x = 319,038.85
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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.