Finding the Fourth Proportional to 850,257.80, 1,275,349.80 and 317,783.44
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Solution
The fourth proportional to 850,257.80, 1,275,349.80 and 317,783.44 is: 476,661.37
Step by Step Solution
- Step 1: Write the proportion equation
850,257.80 : 1,275,349.80 = 317,783.44 : x - Step 2: Convert to fraction form
850,257.80/1,275,349.80 = 317,783.44/x - Step 3: Cross multiply
850,257.80x = 1,275,349.80 × 317,783.44 - Step 4: Simplify right side
850,257.80x = 405,285,046,647.31 - Step 5: Solve for x
x = 405,285,046,647.31/850,257.80 - Step 6: Final answer
x = 476,661.37
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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.