Finding the Fourth Proportional to 415,115.10, 622,672.65 and 415,115.10
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Solution
The fourth proportional to 415,115.10, 622,672.65 and 415,115.10 is: 622,672.65
Step by Step Solution
- Step 1: Write the proportion equation
415,115.10 : 622,672.65 = 415,115.10 : x - Step 2: Convert to fraction form
415,115.10/622,672.65 = 415,115.10/x - Step 3: Cross multiply
415,115.10x = 622,672.65 × 415,115.10 - Step 4: Simplify right side
415,115.10x = 258,480,819,372.02 - Step 5: Solve for x
x = 258,480,819,372.02/415,115.10 - Step 6: Final answer
x = 622,672.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.