Finding the Fourth Proportional to 625,422.38, 863,175.52 and 396,000.99
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Solution
The fourth proportional to 625,422.38, 863,175.52 and 396,000.99 is: 546,540.03
Step by Step Solution
- Step 1: Write the proportion equation
625,422.38 : 863,175.52 = 396,000.99 : x - Step 2: Convert to fraction form
625,422.38/863,175.52 = 396,000.99/x - Step 3: Cross multiply
625,422.38x = 863,175.52 × 396,000.99 - Step 4: Simplify right side
625,422.38x = 341,818,360,958.77 - Step 5: Solve for x
x = 341,818,360,958.77/625,422.38 - Step 6: Final answer
x = 546,540.03
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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.