Finding the Fourth Proportional to 4,080,408.60, 6,120,843.30 and 1,240,613.40
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Solution
The fourth proportional to 4,080,408.60, 6,120,843.30 and 1,240,613.40 is: 1,860,990.15
Step by Step Solution
- Step 1: Write the proportion equation
4,080,408.60 : 6,120,843.30 = 1,240,613.40 : x - Step 2: Convert to fraction form
4,080,408.60/6,120,843.30 = 1,240,613.40/x - Step 3: Cross multiply
4,080,408.60x = 6,120,843.30 × 1,240,613.40 - Step 4: Simplify right side
4,080,408.60x = 7,593,600,217,280.22 - Step 5: Solve for x
x = 7,593,600,217,280.22/4,080,408.60 - Step 6: Final answer
x = 1,860,990.15
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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.