Finding the Fourth Proportional to 864,660.14, 1,190,589.57 and 783,560.09
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Solution
The fourth proportional to 864,660.14, 1,190,589.57 and 783,560.09 is: 1,078,919.25
Step by Step Solution
- Step 1: Write the proportion equation
864,660.14 : 1,190,589.57 = 783,560.09 : x - Step 2: Convert to fraction form
864,660.14/1,190,589.57 = 783,560.09/x - Step 3: Cross multiply
864,660.14x = 1,190,589.57 × 783,560.09 - Step 4: Simplify right side
864,660.14x = 932,898,470,622.26 - Step 5: Solve for x
x = 932,898,470,622.26/864,660.14 - Step 6: Final answer
x = 1,078,919.25
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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.