Finding the Fourth Proportional to 487,907.25, 673,183.98 and 281,124.96
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Solution
The fourth proportional to 487,907.25, 673,183.98 and 281,124.96 is: 387,878.68
Step by Step Solution
- Step 1: Write the proportion equation
487,907.25 : 673,183.98 = 281,124.96 : x - Step 2: Convert to fraction form
487,907.25/673,183.98 = 281,124.96/x - Step 3: Cross multiply
487,907.25x = 673,183.98 × 281,124.96 - Step 4: Simplify right side
487,907.25x = 189,248,819,450.14 - Step 5: Solve for x
x = 189,248,819,450.14/487,907.25 - Step 6: Final answer
x = 387,878.68
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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.