Finding the Fourth Proportional to 1,214,791.17, 1,820,187.41 and 415,635.99
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Solution
The fourth proportional to 1,214,791.17, 1,820,187.41 and 415,635.99 is: 622,769.92
Step by Step Solution
- Step 1: Write the proportion equation
1,214,791.17 : 1,820,187.41 = 415,635.99 : x - Step 2: Convert to fraction form
1,214,791.17/1,820,187.41 = 415,635.99/x - Step 3: Cross multiply
1,214,791.17x = 1,820,187.41 × 415,635.99 - Step 4: Simplify right side
1,214,791.17x = 756,535,394,062.71 - Step 5: Solve for x
x = 756,535,394,062.71/1,214,791.17 - Step 6: Final answer
x = 622,769.92
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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.