Finding the Fourth Proportional to 790,795.26, 1,091,295.47 and 428,219.09
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Solution
The fourth proportional to 790,795.26, 1,091,295.47 and 428,219.09 is: 590,941.26
Step by Step Solution
- Step 1: Write the proportion equation
790,795.26 : 1,091,295.47 = 428,219.09 : x - Step 2: Convert to fraction form
790,795.26/1,091,295.47 = 428,219.09/x - Step 3: Cross multiply
790,795.26x = 1,091,295.47 × 428,219.09 - Step 4: Simplify right side
790,795.26x = 467,313,545,486.95 - Step 5: Solve for x
x = 467,313,545,486.95/790,795.26 - Step 6: Final answer
x = 590,941.26
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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.