Finding the Fourth Proportional to 405,713.40, 608,627.70 and 125,201.40
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Solution
The fourth proportional to 405,713.40, 608,627.70 and 125,201.40 is: 187,819.88
Step by Step Solution
- Step 1: Write the proportion equation
405,713.40 : 608,627.70 = 125,201.40 : x - Step 2: Convert to fraction form
405,713.40/608,627.70 = 125,201.40/x - Step 3: Cross multiply
405,713.40x = 608,627.70 × 125,201.40 - Step 4: Simplify right side
405,713.40x = 76,201,040,118.78 - Step 5: Solve for x
x = 76,201,040,118.78/405,713.40 - Step 6: Final answer
x = 187,819.88
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1.5x scale
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.