Finding the Fourth Proportional to 2,771,323.20, 4,156,984.80 and 1,278,331.20
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Solution
The fourth proportional to 2,771,323.20, 4,156,984.80 and 1,278,331.20 is: 1,917,496.80
Step by Step Solution
- Step 1: Write the proportion equation
2,771,323.20 : 4,156,984.80 = 1,278,331.20 : x - Step 2: Convert to fraction form
2,771,323.20/4,156,984.80 = 1,278,331.20/x - Step 3: Cross multiply
2,771,323.20x = 4,156,984.80 × 1,278,331.20 - Step 4: Simplify right side
2,771,323.20x = 5,314,003,367,765.76 - Step 5: Solve for x
x = 5,314,003,367,765.76/2,771,323.20 - Step 6: Final answer
x = 1,917,496.80
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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.