Finding the Fourth Proportional to 1,540,779.37, 2,126,956.55 and 920,803.26
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Solution
The fourth proportional to 1,540,779.37, 2,126,956.55 and 920,803.26 is: 1,271,115.49
Step by Step Solution
- Step 1: Write the proportion equation
1,540,779.37 : 2,126,956.55 = 920,803.26 : x - Step 2: Convert to fraction form
1,540,779.37/2,126,956.55 = 920,803.26/x - Step 3: Cross multiply
1,540,779.37x = 2,126,956.55 × 920,803.26 - Step 4: Simplify right side
1,540,779.37x = 1,958,508,525,118.35 - Step 5: Solve for x
x = 1,958,508,525,118.35/1,540,779.37 - Step 6: Final answer
x = 1,271,115.49
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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.