Finding the Fourth Proportional to 324,536.28, 486,748.26 and 87,823.68
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Solution
The fourth proportional to 324,536.28, 486,748.26 and 87,823.68 is: 131,720.32
Step by Step Solution
- Step 1: Write the proportion equation
324,536.28 : 486,748.26 = 87,823.68 : x - Step 2: Convert to fraction form
324,536.28/486,748.26 = 87,823.68/x - Step 3: Cross multiply
324,536.28x = 486,748.26 × 87,823.68 - Step 4: Simplify right side
324,536.28x = 42,748,023,426.80 - Step 5: Solve for x
x = 42,748,023,426.80/324,536.28 - Step 6: Final answer
x = 131,720.32
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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.