Finding the Fourth Proportional to 811,761.84, 1,120,232.68 and 449,200.96
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Solution
The fourth proportional to 811,761.84, 1,120,232.68 and 449,200.96 is: 619,898.07
Step by Step Solution
- Step 1: Write the proportion equation
811,761.84 : 1,120,232.68 = 449,200.96 : x - Step 2: Convert to fraction form
811,761.84/1,120,232.68 = 449,200.96/x - Step 3: Cross multiply
811,761.84x = 1,120,232.68 × 449,200.96 - Step 4: Simplify right side
811,761.84x = 503,209,595,279.37 - Step 5: Solve for x
x = 503,209,595,279.37/811,761.84 - Step 6: Final answer
x = 619,898.07
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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.