Finding the Fourth Proportional to 394,297.74, 590,887.62 and 305,136.18
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Solution
The fourth proportional to 394,297.74, 590,887.62 and 305,136.18 is: 457,271.68
Step by Step Solution
- Step 1: Write the proportion equation
394,297.74 : 590,887.62 = 305,136.18 : x - Step 2: Convert to fraction form
394,297.74/590,887.62 = 305,136.18/x - Step 3: Cross multiply
394,297.74x = 590,887.62 × 305,136.18 - Step 4: Simplify right side
394,297.74x = 180,301,191,176.09 - Step 5: Solve for x
x = 180,301,191,176.09/394,297.74 - Step 6: Final answer
x = 457,271.68
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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.