Finding the Fourth Proportional to 667,506.76, 921,163.73 and 361,583.12
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Solution
The fourth proportional to 667,506.76, 921,163.73 and 361,583.12 is: 498,987.09
Step by Step Solution
- Step 1: Write the proportion equation
667,506.76 : 921,163.73 = 361,583.12 : x - Step 2: Convert to fraction form
667,506.76/921,163.73 = 361,583.12/x - Step 3: Cross multiply
667,506.76x = 921,163.73 × 361,583.12 - Step 4: Simplify right side
667,506.76x = 333,077,256,019.23 - Step 5: Solve for x
x = 333,077,256,019.23/667,506.76 - Step 6: Final answer
x = 498,987.09
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1.5x scale
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.