Finding the Fourth Proportional to 2,145,281.28, 2,959,765.41 and 1,214,861.82
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Solution
The fourth proportional to 2,145,281.28, 2,959,765.41 and 1,214,861.82 is: 1,676,100.02
Step by Step Solution
- Step 1: Write the proportion equation
2,145,281.28 : 2,959,765.41 = 1,214,861.82 : x - Step 2: Convert to fraction form
2,145,281.28/2,959,765.41 = 1,214,861.82/x - Step 3: Cross multiply
2,145,281.28x = 2,959,765.41 × 1,214,861.82 - Step 4: Simplify right side
2,145,281.28x = 3,595,705,992,765.65 - Step 5: Solve for x
x = 3,595,705,992,765.65/2,145,281.28 - Step 6: Final answer
x = 1,676,100.02
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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.