Finding the Fourth Proportional to 416,408.87, 574,644.12 and 225,422.12
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Solution
The fourth proportional to 416,408.87, 574,644.12 and 225,422.12 is: 311,082.46
Step by Step Solution
- Step 1: Write the proportion equation
416,408.87 : 574,644.12 = 225,422.12 : x - Step 2: Convert to fraction form
416,408.87/574,644.12 = 225,422.12/x - Step 3: Cross multiply
416,408.87x = 574,644.12 × 225,422.12 - Step 4: Simplify right side
416,408.87x = 129,537,495,775.93 - Step 5: Solve for x
x = 129,537,495,775.93/416,408.87 - Step 6: Final answer
x = 311,082.46
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1.5x scale
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.