Finding the Fourth Proportional to 771,149.10, 1,064,198.88 and 422,320.08
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Solution
The fourth proportional to 771,149.10, 1,064,198.88 and 422,320.08 is: 582,808.90
Step by Step Solution
- Step 1: Write the proportion equation
771,149.10 : 1,064,198.88 = 422,320.08 : x - Step 2: Convert to fraction form
771,149.10/1,064,198.88 = 422,320.08/x - Step 3: Cross multiply
771,149.10x = 1,064,198.88 × 422,320.08 - Step 4: Simplify right side
771,149.10x = 449,432,556,137.51 - Step 5: Solve for x
x = 449,432,556,137.51/771,149.10 - Step 6: Final answer
x = 582,808.90
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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.