Finding the Fourth Proportional to 451,330.54, 622,899.99 and 279,303.91
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Solution
The fourth proportional to 451,330.54, 622,899.99 and 279,303.91 is: 385,478.90
Step by Step Solution
- Step 1: Write the proportion equation
451,330.54 : 622,899.99 = 279,303.91 : x - Step 2: Convert to fraction form
451,330.54/622,899.99 = 279,303.91/x - Step 3: Cross multiply
451,330.54x = 622,899.99 × 279,303.91 - Step 4: Simplify right side
451,330.54x = 173,978,401,188.71 - Step 5: Solve for x
x = 173,978,401,188.71/451,330.54 - Step 6: Final answer
x = 385,478.90
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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.