Finding the Fourth Proportional to 3,907,201.20, 5,860,801.80 and 2,115,610.80
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Solution
The fourth proportional to 3,907,201.20, 5,860,801.80 and 2,115,610.80 is: 3,173,416.20
Step by Step Solution
- Step 1: Write the proportion equation
3,907,201.20 : 5,860,801.80 = 2,115,610.80 : x - Step 2: Convert to fraction form
3,907,201.20/5,860,801.80 = 2,115,610.80/x - Step 3: Cross multiply
3,907,201.20x = 5,860,801.80 × 2,115,610.80 - Step 4: Simplify right side
3,907,201.20x = 12,399,175,584,739.44 - Step 5: Solve for x
x = 12,399,175,584,739.44/3,907,201.20 - Step 6: Final answer
x = 3,173,416.20
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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.