Finding the Fourth Proportional to 2,780,416.80, 4,170,625.20 and 985,327.20
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Solution
The fourth proportional to 2,780,416.80, 4,170,625.20 and 985,327.20 is: 1,477,990.80
Step by Step Solution
- Step 1: Write the proportion equation
2,780,416.80 : 4,170,625.20 = 985,327.20 : x - Step 2: Convert to fraction form
2,780,416.80/4,170,625.20 = 985,327.20/x - Step 3: Cross multiply
2,780,416.80x = 4,170,625.20 × 985,327.20 - Step 4: Simplify right side
2,780,416.80x = 4,109,430,450,565.44 - Step 5: Solve for x
x = 4,109,430,450,565.44/2,780,416.80 - Step 6: Final answer
x = 1,477,990.80
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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.