Finding the Fourth Proportional to 1,586,202.09, 2,379,291.80 and 388,141.62
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Solution
The fourth proportional to 1,586,202.09, 2,379,291.80 and 388,141.62 is: 582,209.66
Step by Step Solution
- Step 1: Write the proportion equation
1,586,202.09 : 2,379,291.80 = 388,141.62 : x - Step 2: Convert to fraction form
1,586,202.09/2,379,291.80 = 388,141.62/x - Step 3: Cross multiply
1,586,202.09x = 2,379,291.80 × 388,141.62 - Step 4: Simplify right side
1,586,202.09x = 923,502,171,764.01 - Step 5: Solve for x
x = 923,502,171,764.01/1,586,202.09 - Step 6: Final answer
x = 582,209.66
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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.