Finding the Fourth Proportional to 490,617.57, 677,071.41 and 275,756.97
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Solution
The fourth proportional to 490,617.57, 677,071.41 and 275,756.97 is: 380,555.39
Step by Step Solution
- Step 1: Write the proportion equation
490,617.57 : 677,071.41 = 275,756.97 : x - Step 2: Convert to fraction form
490,617.57/677,071.41 = 275,756.97/x - Step 3: Cross multiply
490,617.57x = 677,071.41 × 275,756.97 - Step 4: Simplify right side
490,617.57x = 186,707,160,495.23 - Step 5: Solve for x
x = 186,707,160,495.23/490,617.57 - Step 6: Final answer
x = 380,555.39
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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.