Finding the Fourth Proportional to 3,175,272.72, 4,381,906.68 and 1,724,979.06
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Solution
The fourth proportional to 3,175,272.72, 4,381,906.68 and 1,724,979.06 is: 2,380,487.58
Step by Step Solution
- Step 1: Write the proportion equation
3,175,272.72 : 4,381,906.68 = 1,724,979.06 : x - Step 2: Convert to fraction form
3,175,272.72/4,381,906.68 = 1,724,979.06/x - Step 3: Cross multiply
3,175,272.72x = 4,381,906.68 × 1,724,979.06 - Step 4: Simplify right side
3,175,272.72x = 7,558,697,265,874.12 - Step 5: Solve for x
x = 7,558,697,265,874.12/3,175,272.72 - Step 6: Final answer
x = 2,380,487.58
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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.