Finding the Fourth Proportional to 837,122.12, 1,256,472.30 and 305,157.32
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Solution
The fourth proportional to 837,122.12, 1,256,472.30 and 305,157.32 is: 458,023.64
Step by Step Solution
- Step 1: Write the proportion equation
837,122.12 : 1,256,472.30 = 305,157.32 : x - Step 2: Convert to fraction form
837,122.12/1,256,472.30 = 305,157.32/x - Step 3: Cross multiply
837,122.12x = 1,256,472.30 × 305,157.32 - Step 4: Simplify right side
837,122.12x = 383,421,719,722.24 - Step 5: Solve for x
x = 383,421,719,722.24/837,122.12 - Step 6: Final answer
x = 458,023.64
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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.