Finding the Fourth Proportional to 557,982.36, 769,292.91 and 361,399.08
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Solution
The fourth proportional to 557,982.36, 769,292.91 and 361,399.08 is: 498,262.62
Step by Step Solution
- Step 1: Write the proportion equation
557,982.36 : 769,292.91 = 361,399.08 : x - Step 2: Convert to fraction form
557,982.36/769,292.91 = 361,399.08/x - Step 3: Cross multiply
557,982.36x = 769,292.91 × 361,399.08 - Step 4: Simplify right side
557,982.36x = 278,021,749,924.52 - Step 5: Solve for x
x = 278,021,749,924.52/557,982.36 - Step 6: Final answer
x = 498,262.62
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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.