Finding the Fourth Proportional to 919,627.21, 1,379,448.56 and 320,587.26
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Solution
The fourth proportional to 919,627.21, 1,379,448.56 and 320,587.26 is: 480,883.58
Step by Step Solution
- Step 1: Write the proportion equation
919,627.21 : 1,379,448.56 = 320,587.26 : x - Step 2: Convert to fraction form
919,627.21/1,379,448.56 = 320,587.26/x - Step 3: Cross multiply
919,627.21x = 1,379,448.56 × 320,587.26 - Step 4: Simplify right side
919,627.21x = 442,233,629,789.88 - Step 5: Solve for x
x = 442,233,629,789.88/919,627.21 - Step 6: Final answer
x = 480,883.58
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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.