Finding the Fourth Proportional to 728,675.24, 1,005,584.74 and 406,350.72
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Solution
The fourth proportional to 728,675.24, 1,005,584.74 and 406,350.72 is: 560,771.19
Step by Step Solution
- Step 1: Write the proportion equation
728,675.24 : 1,005,584.74 = 406,350.72 : x - Step 2: Convert to fraction form
728,675.24/1,005,584.74 = 406,350.72/x - Step 3: Cross multiply
728,675.24x = 1,005,584.74 × 406,350.72 - Step 4: Simplify right side
728,675.24x = 408,620,083,120.01 - Step 5: Solve for x
x = 408,620,083,120.01/728,675.24 - Step 6: Final answer
x = 560,771.19
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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.