Finding the Fourth Proportional to 1,321,570.75, 1,823,769.26 and 717,958.75
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Solution
The fourth proportional to 1,321,570.75, 1,823,769.26 and 717,958.75 is: 990,783.96
Step by Step Solution
- Step 1: Write the proportion equation
1,321,570.75 : 1,823,769.26 = 717,958.75 : x - Step 2: Convert to fraction form
1,321,570.75/1,823,769.26 = 717,958.75/x - Step 3: Cross multiply
1,321,570.75x = 1,823,769.26 × 717,958.75 - Step 4: Simplify right side
1,321,570.75x = 1,309,391,098,198.02 - Step 5: Solve for x
x = 1,309,391,098,198.02/1,321,570.75 - Step 6: Final answer
x = 990,783.96
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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.