Finding the Fourth Proportional to 811,846.88, 1,120,350.87 and 449,295.74
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Solution
The fourth proportional to 811,846.88, 1,120,350.87 and 449,295.74 is: 620,029.32
Step by Step Solution
- Step 1: Write the proportion equation
811,846.88 : 1,120,350.87 = 449,295.74 : x - Step 2: Convert to fraction form
811,846.88/1,120,350.87 = 449,295.74/x - Step 3: Cross multiply
811,846.88x = 1,120,350.87 × 449,295.74 - Step 4: Simplify right side
811,846.88x = 503,368,867,594.54 - Step 5: Solve for x
x = 503,368,867,594.54/811,846.88 - Step 6: Final answer
x = 620,029.32
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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.