Finding the Fourth Proportional to 859,872.26, 1,289,664.38 and 260,690.14
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Solution
The fourth proportional to 859,872.26, 1,289,664.38 and 260,690.14 is: 390,991.55
Step by Step Solution
- Step 1: Write the proportion equation
859,872.26 : 1,289,664.38 = 260,690.14 : x - Step 2: Convert to fraction form
859,872.26/1,289,664.38 = 260,690.14/x - Step 3: Cross multiply
859,872.26x = 1,289,664.38 × 260,690.14 - Step 4: Simplify right side
859,872.26x = 336,202,787,775.21 - Step 5: Solve for x
x = 336,202,787,775.21/859,872.26 - Step 6: Final answer
x = 390,991.55
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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.