Finding the Fourth Proportional to 1,982,138.10, 2,973,207.15 and 1,184,976.60
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Solution
The fourth proportional to 1,982,138.10, 2,973,207.15 and 1,184,976.60 is: 1,777,464.90
Step by Step Solution
- Step 1: Write the proportion equation
1,982,138.10 : 2,973,207.15 = 1,184,976.60 : x - Step 2: Convert to fraction form
1,982,138.10/2,973,207.15 = 1,184,976.60/x - Step 3: Cross multiply
1,982,138.10x = 2,973,207.15 × 1,184,976.60 - Step 4: Simplify right side
1,982,138.10x = 3,523,180,899,702.69 - Step 5: Solve for x
x = 3,523,180,899,702.69/1,982,138.10 - Step 6: Final answer
x = 1,777,464.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.