Finding the Fourth Proportional to 476,659.71, 657,764.15 and 261,765.09
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Solution
The fourth proportional to 476,659.71, 657,764.15 and 261,765.09 is: 361,221.41
Step by Step Solution
- Step 1: Write the proportion equation
476,659.71 : 657,764.15 = 261,765.09 : x - Step 2: Convert to fraction form
476,659.71/657,764.15 = 261,765.09/x - Step 3: Cross multiply
476,659.71x = 657,764.15 × 261,765.09 - Step 4: Simplify right side
476,659.71x = 172,179,690,614.70 - Step 5: Solve for x
x = 172,179,690,614.70/476,659.71 - Step 6: Final answer
x = 361,221.41
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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.