Finding the Fourth Proportional to 811,234.75, 1,216,497.11 and 384,892.12
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Solution
The fourth proportional to 811,234.75, 1,216,497.11 and 384,892.12 is: 577,169.74
Step by Step Solution
- Step 1: Write the proportion equation
811,234.75 : 1,216,497.11 = 384,892.12 : x - Step 2: Convert to fraction form
811,234.75/1,216,497.11 = 384,892.12/x - Step 3: Cross multiply
811,234.75x = 1,216,497.11 × 384,892.12 - Step 4: Simplify right side
811,234.75x = 468,220,149,717.31 - Step 5: Solve for x
x = 468,220,149,717.31/811,234.75 - Step 6: Final answer
x = 577,169.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.