Finding the Fourth Proportional to 366,879.20, 513,980.80 and 366,879.20
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Solution
The fourth proportional to 366,879.20, 513,980.80 and 366,879.20 is: 513,980.80
Step by Step Solution
- Step 1: Write the proportion equation
366,879.20 : 513,980.80 = 366,879.20 : x - Step 2: Convert to fraction form
366,879.20/513,980.80 = 366,879.20/x - Step 3: Cross multiply
366,879.20x = 513,980.80 × 366,879.20 - Step 4: Simplify right side
366,879.20x = 188,568,864,719.36 - Step 5: Solve for x
x = 188,568,864,719.36/366,879.20 - Step 6: Final answer
x = 513,980.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.