Finding the Fourth Proportional to 437,716.36, 604,163.28 and 285,173.20
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Solution
The fourth proportional to 437,716.36, 604,163.28 and 285,173.20 is: 393,613.75
Step by Step Solution
- Step 1: Write the proportion equation
437,716.36 : 604,163.28 = 285,173.20 : x - Step 2: Convert to fraction form
437,716.36/604,163.28 = 285,173.20/x - Step 3: Cross multiply
437,716.36x = 604,163.28 × 285,173.20 - Step 4: Simplify right side
437,716.36x = 172,291,175,880.10 - Step 5: Solve for x
x = 172,291,175,880.10/437,716.36 - Step 6: Final answer
x = 393,613.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.