Finding the Fourth Proportional to 858,135.24, 1,286,704.40 and 325,365.63
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Solution
The fourth proportional to 858,135.24, 1,286,704.40 and 325,365.63 is: 487,859.45
Step by Step Solution
- Step 1: Write the proportion equation
858,135.24 : 1,286,704.40 = 325,365.63 : x - Step 2: Convert to fraction form
858,135.24/1,286,704.40 = 325,365.63/x - Step 3: Cross multiply
858,135.24x = 1,286,704.40 × 325,365.63 - Step 4: Simplify right side
858,135.24x = 418,649,386,102.94 - Step 5: Solve for x
x = 418,649,386,102.94/858,135.24 - Step 6: Final answer
x = 487,859.45
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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.