Finding the Fourth Proportional to 490,519.68, 677,102.14 and 286,636.90
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Solution
The fourth proportional to 490,519.68, 677,102.14 and 286,636.90 is: 395,667.02
Step by Step Solution
- Step 1: Write the proportion equation
490,519.68 : 677,102.14 = 286,636.90 : x - Step 2: Convert to fraction form
490,519.68/677,102.14 = 286,636.90/x - Step 3: Cross multiply
490,519.68x = 677,102.14 × 286,636.90 - Step 4: Simplify right side
490,519.68x = 194,082,458,392.97 - Step 5: Solve for x
x = 194,082,458,392.97/490,519.68 - Step 6: Final answer
x = 395,667.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.