Finding the Fourth Proportional to 811,734.84, 1,120,195.38 and 449,173.98
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Solution
The fourth proportional to 811,734.84, 1,120,195.38 and 449,173.98 is: 619,860.81
Step by Step Solution
- Step 1: Write the proportion equation
811,734.84 : 1,120,195.38 = 449,173.98 : x - Step 2: Convert to fraction form
811,734.84/1,120,195.38 = 449,173.98/x - Step 3: Cross multiply
811,734.84x = 1,120,195.38 × 449,173.98 - Step 4: Simplify right side
811,734.84x = 503,162,617,212.21 - Step 5: Solve for x
x = 503,162,617,212.21/811,734.84 - Step 6: Final answer
x = 619,860.81
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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.