Finding the Fourth Proportional to 670,334.44, 1,005,287.99 and 220,971.55
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Solution
The fourth proportional to 670,334.44, 1,005,287.99 and 220,971.55 is: 331,386.89
Step by Step Solution
- Step 1: Write the proportion equation
670,334.44 : 1,005,287.99 = 220,971.55 : x - Step 2: Convert to fraction form
670,334.44/1,005,287.99 = 220,971.55/x - Step 3: Cross multiply
670,334.44x = 1,005,287.99 × 220,971.55 - Step 4: Simplify right side
670,334.44x = 222,140,044,241.83 - Step 5: Solve for x
x = 222,140,044,241.83/670,334.44 - Step 6: Final answer
x = 331,386.89
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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.