Finding the Fourth Proportional to 621,879.14, 858,183.16 and 349,946.88
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Solution
The fourth proportional to 621,879.14, 858,183.16 and 349,946.88 is: 482,921.04
Step by Step Solution
- Step 1: Write the proportion equation
621,879.14 : 858,183.16 = 349,946.88 : x - Step 2: Convert to fraction form
621,879.14/858,183.16 = 349,946.88/x - Step 3: Cross multiply
621,879.14x = 858,183.16 × 349,946.88 - Step 4: Simplify right side
621,879.14x = 300,318,519,310.54 - Step 5: Solve for x
x = 300,318,519,310.54/621,879.14 - Step 6: Final answer
x = 482,921.04
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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.