Finding the Fourth Proportional to 2,292,206.80, 3,438,310.20 and 2,126,318.80
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Solution
The fourth proportional to 2,292,206.80, 3,438,310.20 and 2,126,318.80 is: 3,189,478.20
Step by Step Solution
- Step 1: Write the proportion equation
2,292,206.80 : 3,438,310.20 = 2,126,318.80 : x - Step 2: Convert to fraction form
2,292,206.80/3,438,310.20 = 2,126,318.80/x - Step 3: Cross multiply
2,292,206.80x = 3,438,310.20 × 2,126,318.80 - Step 4: Simplify right side
2,292,206.80x = 7,310,943,618,491.76 - Step 5: Solve for x
x = 7,310,943,618,491.76/2,292,206.80 - Step 6: Final answer
x = 3,189,478.20
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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.