Finding the Fourth Proportional to 1,260,728.35, 1,739,832.73 and 687,768.05
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Solution
The fourth proportional to 1,260,728.35, 1,739,832.73 and 687,768.05 is: 949,134.97
Step by Step Solution
- Step 1: Write the proportion equation
1,260,728.35 : 1,739,832.73 = 687,768.05 : x - Step 2: Convert to fraction form
1,260,728.35/1,739,832.73 = 687,768.05/x - Step 3: Cross multiply
1,260,728.35x = 1,739,832.73 × 687,768.05 - Step 4: Simplify right side
1,260,728.35x = 1,196,601,366,668.44 - Step 5: Solve for x
x = 1,196,601,366,668.44/1,260,728.35 - Step 6: Final answer
x = 949,134.97
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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.