Finding the Fourth Proportional to 1,077,198.99, 1,615,853.84 and 278,487.45
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Solution
The fourth proportional to 1,077,198.99, 1,615,853.84 and 278,487.45 is: 417,745.49
Step by Step Solution
- Step 1: Write the proportion equation
1,077,198.99 : 1,615,853.84 = 278,487.45 : x - Step 2: Convert to fraction form
1,077,198.99/1,615,853.84 = 278,487.45/x - Step 3: Cross multiply
1,077,198.99x = 1,615,853.84 × 278,487.45 - Step 4: Simplify right side
1,077,198.99x = 449,995,023,444.30 - Step 5: Solve for x
x = 449,995,023,444.30/1,077,198.99 - Step 6: Final answer
x = 417,745.49
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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.