Finding the Fourth Proportional to 324,507.12, 486,761.06 and 84,620.81
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Solution
The fourth proportional to 324,507.12, 486,761.06 and 84,620.81 is: 126,931.32
Step by Step Solution
- Step 1: Write the proportion equation
324,507.12 : 486,761.06 = 84,620.81 : x - Step 2: Convert to fraction form
324,507.12/486,761.06 = 84,620.81/x - Step 3: Cross multiply
324,507.12x = 486,761.06 × 84,620.81 - Step 4: Simplify right side
324,507.12x = 41,190,116,929.63 - Step 5: Solve for x
x = 41,190,116,929.63/324,507.12 - Step 6: Final answer
x = 126,931.32
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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.