Finding the Fourth Proportional to 629,899.98, 869,224.51 and 357,930.12
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Solution
The fourth proportional to 629,899.98, 869,224.51 and 357,930.12 is: 493,922.28
Step by Step Solution
- Step 1: Write the proportion equation
629,899.98 : 869,224.51 = 357,930.12 : x - Step 2: Convert to fraction form
629,899.98/869,224.51 = 357,930.12/x - Step 3: Cross multiply
629,899.98x = 869,224.51 × 357,930.12 - Step 4: Simplify right side
629,899.98x = 311,121,633,171.24 - Step 5: Solve for x
x = 311,121,633,171.24/629,899.98 - Step 6: Final answer
x = 493,922.28
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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.