Finding the Fourth Proportional to 629,819.56, 869,107.44 and 354,218.68
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Solution
The fourth proportional to 629,819.56, 869,107.44 and 354,218.68 is: 488,797.28
Step by Step Solution
- Step 1: Write the proportion equation
629,819.56 : 869,107.44 = 354,218.68 : x - Step 2: Convert to fraction form
629,819.56/869,107.44 = 354,218.68/x - Step 3: Cross multiply
629,819.56x = 869,107.44 × 354,218.68 - Step 4: Simplify right side
629,819.56x = 307,854,090,174.98 - Step 5: Solve for x
x = 307,854,090,174.98/629,819.56 - Step 6: Final answer
x = 488,797.28
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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.