Finding the Fourth Proportional to 324,537.28, 486,749.76 and 87,824.68
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Solution
The fourth proportional to 324,537.28, 486,749.76 and 87,824.68 is: 131,721.82
Step by Step Solution
- Step 1: Write the proportion equation
324,537.28 : 486,749.76 = 87,824.68 : x - Step 2: Convert to fraction form
324,537.28/486,749.76 = 87,824.68/x - Step 3: Cross multiply
324,537.28x = 486,749.76 × 87,824.68 - Step 4: Simplify right side
324,537.28x = 42,748,641,912.08 - Step 5: Solve for x
x = 42,748,641,912.08/324,537.28 - Step 6: Final answer
x = 131,721.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.