Finding the Fourth Proportional to 665,115.44, 918,161.48 and 423,729.04
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Solution
The fourth proportional to 665,115.44, 918,161.48 and 423,729.04 is: 584,938.58
Step by Step Solution
- Step 1: Write the proportion equation
665,115.44 : 918,161.48 = 423,729.04 : x - Step 2: Convert to fraction form
665,115.44/918,161.48 = 423,729.04/x - Step 3: Cross multiply
665,115.44x = 918,161.48 × 423,729.04 - Step 4: Simplify right side
665,115.44x = 389,051,682,485.38 - Step 5: Solve for x
x = 389,051,682,485.38/665,115.44 - Step 6: Final answer
x = 584,938.58
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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.