Finding the Fourth Proportional to 557,181.09, 769,238.08 and 339,471.92
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Solution
The fourth proportional to 557,181.09, 769,238.08 and 339,471.92 is: 468,671.20
Step by Step Solution
- Step 1: Write the proportion equation
557,181.09 : 769,238.08 = 339,471.92 : x - Step 2: Convert to fraction form
557,181.09/769,238.08 = 339,471.92/x - Step 3: Cross multiply
557,181.09x = 769,238.08 × 339,471.92 - Step 4: Simplify right side
557,181.09x = 261,134,729,029.13 - Step 5: Solve for x
x = 261,134,729,029.13/557,181.09 - Step 6: Final answer
x = 468,671.20
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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.