Finding the Fourth Proportional to 741,643.13, 1,112,408.79 and 236,183.69
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Solution
The fourth proportional to 741,643.13, 1,112,408.79 and 236,183.69 is: 354,257.73
Step by Step Solution
- Step 1: Write the proportion equation
741,643.13 : 1,112,408.79 = 236,183.69 : x - Step 2: Convert to fraction form
741,643.13/1,112,408.79 = 236,183.69/x - Step 3: Cross multiply
741,643.13x = 1,112,408.79 × 236,183.69 - Step 4: Simplify right side
741,643.13x = 262,732,812,810.64 - Step 5: Solve for x
x = 262,732,812,810.64/741,643.13 - Step 6: Final answer
x = 354,257.73
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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.