Finding the Fourth Proportional to 2,124,181.21, 2,931,403.72 and 1,157,311.24
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Solution
The fourth proportional to 2,124,181.21, 2,931,403.72 and 1,157,311.24 is: 1,597,107.85
Step by Step Solution
- Step 1: Write the proportion equation
2,124,181.21 : 2,931,403.72 = 1,157,311.24 : x - Step 2: Convert to fraction form
2,124,181.21/2,931,403.72 = 1,157,311.24/x - Step 3: Cross multiply
2,124,181.21x = 2,931,403.72 × 1,157,311.24 - Step 4: Simplify right side
2,124,181.21x = 3,392,546,482,571.13 - Step 5: Solve for x
x = 3,392,546,482,571.13/2,124,181.21 - Step 6: Final answer
x = 1,597,107.85
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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.