Finding the Fourth Proportional to 415,422.16, 573,357.24 and 396,490.06
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Solution
The fourth proportional to 415,422.16, 573,357.24 and 396,490.06 is: 547,227.54
Step by Step Solution
- Step 1: Write the proportion equation
415,422.16 : 573,357.24 = 396,490.06 : x - Step 2: Convert to fraction form
415,422.16/573,357.24 = 396,490.06/x - Step 3: Cross multiply
415,422.16x = 573,357.24 × 396,490.06 - Step 4: Simplify right side
415,422.16x = 227,330,446,489.03 - Step 5: Solve for x
x = 227,330,446,489.03/415,422.16 - Step 6: Final answer
x = 547,227.54
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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.