Finding the Fourth Proportional to 499,438.36, 689,269.96 and 284,647.62
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Solution
The fourth proportional to 499,438.36, 689,269.96 and 284,647.62 is: 392,839.37
Step by Step Solution
- Step 1: Write the proportion equation
499,438.36 : 689,269.96 = 284,647.62 : x - Step 2: Convert to fraction form
499,438.36/689,269.96 = 284,647.62/x - Step 3: Cross multiply
499,438.36x = 689,269.96 × 284,647.62 - Step 4: Simplify right side
499,438.36x = 196,199,051,113.78 - Step 5: Solve for x
x = 196,199,051,113.78/499,438.36 - Step 6: Final answer
x = 392,839.37
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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.