Finding the Fourth Proportional to 500,128.21, 751,817.99 and 401,370.58
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Solution
The fourth proportional to 500,128.21, 751,817.99 and 401,370.58 is: 603,360.53
Step by Step Solution
- Step 1: Write the proportion equation
500,128.21 : 751,817.99 = 401,370.58 : x - Step 2: Convert to fraction form
500,128.21/751,817.99 = 401,370.58/x - Step 3: Cross multiply
500,128.21x = 751,817.99 × 401,370.58 - Step 4: Simplify right side
500,128.21x = 301,757,622,700.73 - Step 5: Solve for x
x = 301,757,622,700.73/500,128.21 - Step 6: Final answer
x = 603,360.53
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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.