Finding the Fourth Proportional to 513,033.80, 768,879.60 and 275,865.80
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Solution
The fourth proportional to 513,033.80, 768,879.60 and 275,865.80 is: 413,437.84
Step by Step Solution
- Step 1: Write the proportion equation
513,033.80 : 768,879.60 = 275,865.80 : x - Step 2: Convert to fraction form
513,033.80/768,879.60 = 275,865.80/x - Step 3: Cross multiply
513,033.80x = 768,879.60 × 275,865.80 - Step 4: Simplify right side
513,033.80x = 212,107,585,957.68 - Step 5: Solve for x
x = 212,107,585,957.68/513,033.80 - Step 6: Final answer
x = 413,437.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.