Finding the Fourth Proportional to 2,212,991.90, 3,054,219.84 and 1,246,311.16
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Solution
The fourth proportional to 2,212,991.90, 3,054,219.84 and 1,246,311.16 is: 1,720,073.30
Step by Step Solution
- Step 1: Write the proportion equation
2,212,991.90 : 3,054,219.84 = 1,246,311.16 : x - Step 2: Convert to fraction form
2,212,991.90/3,054,219.84 = 1,246,311.16/x - Step 3: Cross multiply
2,212,991.90x = 3,054,219.84 × 1,246,311.16 - Step 4: Simplify right side
2,212,991.90x = 3,806,508,271,685.41 - Step 5: Solve for x
x = 3,806,508,271,685.41/2,212,991.90 - Step 6: Final answer
x = 1,720,073.30
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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.