Finding the Fourth Proportional to 557,983.36, 769,294.29 and 361,400.08
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Solution
The fourth proportional to 557,983.36, 769,294.29 and 361,400.08 is: 498,263.99
Step by Step Solution
- Step 1: Write the proportion equation
557,983.36 : 769,294.29 = 361,400.08 : x - Step 2: Convert to fraction form
557,983.36/769,294.29 = 361,400.08/x - Step 3: Cross multiply
557,983.36x = 769,294.29 × 361,400.08 - Step 4: Simplify right side
557,983.36x = 278,023,017,949.54 - Step 5: Solve for x
x = 278,023,017,949.54/557,983.36 - Step 6: Final answer
x = 498,263.99
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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.