Finding the Fourth Proportional to 485,590.37, 670,163.69 and 281,703.65
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Solution
The fourth proportional to 485,590.37, 670,163.69 and 281,703.65 is: 388,779.45
Step by Step Solution
- Step 1: Write the proportion equation
485,590.37 : 670,163.69 = 281,703.65 : x - Step 2: Convert to fraction form
485,590.37/670,163.69 = 281,703.65/x - Step 3: Cross multiply
485,590.37x = 670,163.69 × 281,703.65 - Step 4: Simplify right side
485,590.37x = 188,787,554,923.91 - Step 5: Solve for x
x = 188,787,554,923.91/485,590.37 - Step 6: Final answer
x = 388,779.45
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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.