Finding the Fourth Proportional to 491,309.20, 677,998.84 and 276,449.14
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Solution
The fourth proportional to 491,309.20, 677,998.84 and 276,449.14 is: 381,495.39
Step by Step Solution
- Step 1: Write the proportion equation
491,309.20 : 677,998.84 = 276,449.14 : x - Step 2: Convert to fraction form
491,309.20/677,998.84 = 276,449.14/x - Step 3: Cross multiply
491,309.20x = 677,998.84 × 276,449.14 - Step 4: Simplify right side
491,309.20x = 187,432,196,239.00 - Step 5: Solve for x
x = 187,432,196,239.00/491,309.20 - Step 6: Final answer
x = 381,495.39
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1.5x scale
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.