Finding the Fourth Proportional to 1,119,660.22, 1,679,491.55 and 278,211.97
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Solution
The fourth proportional to 1,119,660.22, 1,679,491.55 and 278,211.97 is: 417,318.26
Step by Step Solution
- Step 1: Write the proportion equation
1,119,660.22 : 1,679,491.55 = 278,211.97 : x - Step 2: Convert to fraction form
1,119,660.22/1,679,491.55 = 278,211.97/x - Step 3: Cross multiply
1,119,660.22x = 1,679,491.55 × 278,211.97 - Step 4: Simplify right side
1,119,660.22x = 467,254,652,723.85 - Step 5: Solve for x
x = 467,254,652,723.85/1,119,660.22 - Step 6: Final answer
x = 417,318.26
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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.