Finding the Fourth Proportional to 392,806.63, 589,468.25 and 215,438.14
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Solution
The fourth proportional to 392,806.63, 589,468.25 and 215,438.14 is: 323,298.88
Step by Step Solution
- Step 1: Write the proportion equation
392,806.63 : 589,468.25 = 215,438.14 : x - Step 2: Convert to fraction form
392,806.63/589,468.25 = 215,438.14/x - Step 3: Cross multiply
392,806.63x = 589,468.25 × 215,438.14 - Step 4: Simplify right side
392,806.63x = 126,993,943,369.06 - Step 5: Solve for x
x = 126,993,943,369.06/392,806.63 - Step 6: Final answer
x = 323,298.88
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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.