Finding the Fourth Proportional to 811,207.22, 1,216,717.86 and 212,226.18
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Solution
The fourth proportional to 811,207.22, 1,216,717.86 and 212,226.18 is: 318,314.95
Step by Step Solution
- Step 1: Write the proportion equation
811,207.22 : 1,216,717.86 = 212,226.18 : x - Step 2: Convert to fraction form
811,207.22/1,216,717.86 = 212,226.18/x - Step 3: Cross multiply
811,207.22x = 1,216,717.86 × 212,226.18 - Step 4: Simplify right side
811,207.22x = 258,219,383,565.58 - Step 5: Solve for x
x = 258,219,383,565.58/811,207.22 - Step 6: Final answer
x = 318,314.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.