Finding the Fourth Proportional to 859,557.12, 1,289,708.28 and 327,229.44
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Solution
The fourth proportional to 859,557.12, 1,289,708.28 and 327,229.44 is: 490,986.01
Step by Step Solution
- Step 1: Write the proportion equation
859,557.12 : 1,289,708.28 = 327,229.44 : x - Step 2: Convert to fraction form
859,557.12/1,289,708.28 = 327,229.44/x - Step 3: Cross multiply
859,557.12x = 1,289,708.28 × 327,229.44 - Step 4: Simplify right side
859,557.12x = 422,030,518,227.76 - Step 5: Solve for x
x = 422,030,518,227.76/859,557.12 - Step 6: Final answer
x = 490,986.01
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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.