Finding the Fourth Proportional to 3,168,791.35, 4,372,814.06 and 1,878,859.87
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Solution
The fourth proportional to 3,168,791.35, 4,372,814.06 and 1,878,859.87 is: 2,592,756.65
Step by Step Solution
- Step 1: Write the proportion equation
3,168,791.35 : 4,372,814.06 = 1,878,859.87 : x - Step 2: Convert to fraction form
3,168,791.35/4,372,814.06 = 1,878,859.87/x - Step 3: Cross multiply
3,168,791.35x = 4,372,814.06 × 1,878,859.87 - Step 4: Simplify right side
3,168,791.35x = 8,215,904,843,025.16 - Step 5: Solve for x
x = 8,215,904,843,025.16/3,168,791.35 - Step 6: Final answer
x = 2,592,756.65
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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.