Finding the Fourth Proportional to 4,115,487.52, 5,679,361.68 and 2,279,949.28
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Solution
The fourth proportional to 4,115,487.52, 5,679,361.68 and 2,279,949.28 is: 3,146,323.86
Step by Step Solution
- Step 1: Write the proportion equation
4,115,487.52 : 5,679,361.68 = 2,279,949.28 : x - Step 2: Convert to fraction form
4,115,487.52/5,679,361.68 = 2,279,949.28/x - Step 3: Cross multiply
4,115,487.52x = 5,679,361.68 × 2,279,949.28 - Step 4: Simplify right side
4,115,487.52x = 12,948,656,573,175.59 - Step 5: Solve for x
x = 12,948,656,573,175.59/4,115,487.52 - Step 6: Final answer
x = 3,146,323.86
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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.