Finding the Fourth Proportional to 639,048.10, 957,843.26 and 399,272.26
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Solution
The fourth proportional to 639,048.10, 957,843.26 and 399,272.26 is: 598,452.99
Step by Step Solution
- Step 1: Write the proportion equation
639,048.10 : 957,843.26 = 399,272.26 : x - Step 2: Convert to fraction form
639,048.10/957,843.26 = 399,272.26/x - Step 3: Cross multiply
639,048.10x = 957,843.26 × 399,272.26 - Step 4: Simplify right side
639,048.10x = 382,440,243,145.97 - Step 5: Solve for x
x = 382,440,243,145.97/639,048.10 - Step 6: Final answer
x = 598,452.99
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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.