Finding the Fourth Proportional to 1,305,790.38, 1,958,699.91 and 394,982.10
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Solution
The fourth proportional to 1,305,790.38, 1,958,699.91 and 394,982.10 is: 592,477.49
Step by Step Solution
- Step 1: Write the proportion equation
1,305,790.38 : 1,958,699.91 = 394,982.10 : x - Step 2: Convert to fraction form
1,305,790.38/1,958,699.91 = 394,982.10/x - Step 3: Cross multiply
1,305,790.38x = 1,958,699.91 × 394,982.10 - Step 4: Simplify right side
1,305,790.38x = 773,651,403,721.61 - Step 5: Solve for x
x = 773,651,403,721.61/1,305,790.38 - Step 6: Final answer
x = 592,477.49
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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.