Finding the Fourth Proportional to 499,454.55, 689,114.43 and 284,589.99
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Solution
The fourth proportional to 499,454.55, 689,114.43 and 284,589.99 is: 392,658.49
Step by Step Solution
- Step 1: Write the proportion equation
499,454.55 : 689,114.43 = 284,589.99 : x - Step 2: Convert to fraction form
499,454.55/689,114.43 = 284,589.99/x - Step 3: Cross multiply
499,454.55x = 689,114.43 × 284,589.99 - Step 4: Simplify right side
499,454.55x = 196,115,068,742.56 - Step 5: Solve for x
x = 196,115,068,742.56/499,454.55 - Step 6: Final answer
x = 392,658.49
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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.