Finding the Fourth Proportional to 538,161.87, 742,659.93 and 296,438.84
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Solution
The fourth proportional to 538,161.87, 742,659.93 and 296,438.84 is: 409,083.69
Step by Step Solution
- Step 1: Write the proportion equation
538,161.87 : 742,659.93 = 296,438.84 : x - Step 2: Convert to fraction form
538,161.87/742,659.93 = 296,438.84/x - Step 3: Cross multiply
538,161.87x = 742,659.93 × 296,438.84 - Step 4: Simplify right side
538,161.87x = 220,153,244,450.38 - Step 5: Solve for x
x = 220,153,244,450.38/538,161.87 - Step 6: Final answer
x = 409,083.69
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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.