Finding the Fourth Proportional to 449,657.68, 620,529.21 and 245,708.60
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Solution
The fourth proportional to 449,657.68, 620,529.21 and 245,708.60 is: 339,078.75
Step by Step Solution
- Step 1: Write the proportion equation
449,657.68 : 620,529.21 = 245,708.60 : x - Step 2: Convert to fraction form
449,657.68/620,529.21 = 245,708.60/x - Step 3: Cross multiply
449,657.68x = 620,529.21 × 245,708.60 - Step 4: Simplify right side
449,657.68x = 152,469,363,448.21 - Step 5: Solve for x
x = 152,469,363,448.21/449,657.68 - Step 6: Final answer
x = 339,078.75
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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.