Finding the Fourth Proportional to 821,349.38, 1,133,450.16 and 458,778.44
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Solution
The fourth proportional to 821,349.38, 1,133,450.16 and 458,778.44 is: 633,107.55
Step by Step Solution
- Step 1: Write the proportion equation
821,349.38 : 1,133,450.16 = 458,778.44 : x - Step 2: Convert to fraction form
821,349.38/1,133,450.16 = 458,778.44/x - Step 3: Cross multiply
821,349.38x = 1,133,450.16 × 458,778.44 - Step 4: Simplify right side
821,349.38x = 520,002,496,222.55 - Step 5: Solve for x
x = 520,002,496,222.55/821,349.38 - Step 6: Final answer
x = 633,107.55
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1.5x scale
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.