Finding the Fourth Proportional to 3,970,132.88, 5,474,407.08 and 2,744,310.08
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Solution
The fourth proportional to 3,970,132.88, 5,474,407.08 and 2,744,310.08 is: 3,784,122.85
Step by Step Solution
- Step 1: Write the proportion equation
3,970,132.88 : 5,474,407.08 = 2,744,310.08 : x - Step 2: Convert to fraction form
3,970,132.88/5,474,407.08 = 2,744,310.08/x - Step 3: Cross multiply
3,970,132.88x = 5,474,407.08 × 2,744,310.08 - Step 4: Simplify right side
3,970,132.88x = 15,023,470,531,667.37 - Step 5: Solve for x
x = 15,023,470,531,667.37/3,970,132.88 - Step 6: Final answer
x = 3,784,122.85
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1.5x scale
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.