Finding the Fourth Proportional to 771,158.74, 1,064,198.76 and 431,626.99
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Solution
The fourth proportional to 771,158.74, 1,064,198.76 and 431,626.99 is: 595,645.08
Step by Step Solution
- Step 1: Write the proportion equation
771,158.74 : 1,064,198.76 = 431,626.99 : x - Step 2: Convert to fraction form
771,158.74/1,064,198.76 = 431,626.99/x - Step 3: Cross multiply
771,158.74x = 1,064,198.76 × 431,626.99 - Step 4: Simplify right side
771,158.74x = 459,336,907,540.53 - Step 5: Solve for x
x = 459,336,907,540.53/771,158.74 - Step 6: Final answer
x = 595,645.08
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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.