Finding the Fourth Proportional to 409,323.96, 560,776.41 and 393,983.44
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Solution
The fourth proportional to 409,323.96, 560,776.41 and 393,983.44 is: 539,759.80
Step by Step Solution
- Step 1: Write the proportion equation
409,323.96 : 560,776.41 = 393,983.44 : x - Step 2: Convert to fraction form
409,323.96/560,776.41 = 393,983.44/x - Step 3: Cross multiply
409,323.96x = 560,776.41 × 393,983.44 - Step 4: Simplify right side
409,323.96x = 220,936,619,082.65 - Step 5: Solve for x
x = 220,936,619,082.65/409,323.96 - Step 6: Final answer
x = 539,759.80
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.