Finding the Fourth Proportional to 415,221.09, 622,832.03 and 115,709.66
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Solution
The fourth proportional to 415,221.09, 622,832.03 and 115,709.66 is: 173,564.61
Step by Step Solution
- Step 1: Write the proportion equation
415,221.09 : 622,832.03 = 115,709.66 : x - Step 2: Convert to fraction form
415,221.09/622,832.03 = 115,709.66/x - Step 3: Cross multiply
415,221.09x = 622,832.03 × 115,709.66 - Step 4: Simplify right side
415,221.09x = 72,067,685,659.53 - Step 5: Solve for x
x = 72,067,685,659.53/415,221.09 - Step 6: Final answer
x = 173,564.61
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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.