Finding the Fourth Proportional to 1,040,090.20, 1,560,135.30 and 330,173.80
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Solution
The fourth proportional to 1,040,090.20, 1,560,135.30 and 330,173.80 is: 495,260.70
Step by Step Solution
- Step 1: Write the proportion equation
1,040,090.20 : 1,560,135.30 = 330,173.80 : x - Step 2: Convert to fraction form
1,040,090.20/1,560,135.30 = 330,173.80/x - Step 3: Cross multiply
1,040,090.20x = 1,560,135.30 × 330,173.80 - Step 4: Simplify right side
1,040,090.20x = 515,115,800,515.14 - Step 5: Solve for x
x = 515,115,800,515.14/1,040,090.20 - Step 6: Final answer
x = 495,260.70
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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.