Finding the Fourth Proportional to 667,639.44, 1,001,447.58 and 212,228.67
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Solution
The fourth proportional to 667,639.44, 1,001,447.58 and 212,228.67 is: 318,339.32
Step by Step Solution
- Step 1: Write the proportion equation
667,639.44 : 1,001,447.58 = 212,228.67 : x - Step 2: Convert to fraction form
667,639.44/1,001,447.58 = 212,228.67/x - Step 3: Cross multiply
667,639.44x = 1,001,447.58 × 212,228.67 - Step 4: Simplify right side
667,639.44x = 212,535,887,978.12 - Step 5: Solve for x
x = 212,535,887,978.12/667,639.44 - Step 6: Final answer
x = 318,339.32
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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.