Finding the Fourth Proportional to 449,622.19, 620,460.21 and 245,680.12
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Solution
The fourth proportional to 449,622.19, 620,460.21 and 245,680.12 is: 339,028.50
Step by Step Solution
- Step 1: Write the proportion equation
449,622.19 : 620,460.21 = 245,680.12 : x - Step 2: Convert to fraction form
449,622.19/620,460.21 = 245,680.12/x - Step 3: Cross multiply
449,622.19x = 620,460.21 × 245,680.12 - Step 4: Simplify right side
449,622.19x = 152,434,738,848.03 - Step 5: Solve for x
x = 152,434,738,848.03/449,622.19 - Step 6: Final answer
x = 339,028.50
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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.