Finding the Fourth Proportional to 439,906.44, 659,837.79 and 257,639.70
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Solution
The fourth proportional to 439,906.44, 659,837.79 and 257,639.70 is: 386,446.74
Step by Step Solution
- Step 1: Write the proportion equation
439,906.44 : 659,837.79 = 257,639.70 : x - Step 2: Convert to fraction form
439,906.44/659,837.79 = 257,639.70/x - Step 3: Cross multiply
439,906.44x = 659,837.79 × 257,639.70 - Step 4: Simplify right side
439,906.44x = 170,000,410,264.26 - Step 5: Solve for x
x = 170,000,410,264.26/439,906.44 - Step 6: Final answer
x = 386,446.74
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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.