Finding the Fourth Proportional to 2,212,988.90, 3,054,215.70 and 1,246,308.17
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Solution
The fourth proportional to 2,212,988.90, 3,054,215.70 and 1,246,308.17 is: 1,720,069.17
Step by Step Solution
- Step 1: Write the proportion equation
2,212,988.90 : 3,054,215.70 = 1,246,308.17 : x - Step 2: Convert to fraction form
2,212,988.90/3,054,215.70 = 1,246,308.17/x - Step 3: Cross multiply
2,212,988.90x = 3,054,215.70 × 1,246,308.17 - Step 4: Simplify right side
2,212,988.90x = 3,806,493,964,581.19 - Step 5: Solve for x
x = 3,806,493,964,581.19/2,212,988.90 - Step 6: Final answer
x = 1,720,069.17
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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.