Finding the Fourth Proportional to 388,489.05, 582,823.73 and 122,242.65
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Solution
The fourth proportional to 388,489.05, 582,823.73 and 122,242.65 is: 183,392.34
Step by Step Solution
- Step 1: Write the proportion equation
388,489.05 : 582,823.73 = 122,242.65 : x - Step 2: Convert to fraction form
388,489.05/582,823.73 = 122,242.65/x - Step 3: Cross multiply
388,489.05x = 582,823.73 × 122,242.65 - Step 4: Simplify right side
388,489.05x = 71,245,917,063.28 - Step 5: Solve for x
x = 71,245,917,063.28/388,489.05 - Step 6: Final answer
x = 183,392.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.