Finding the Fourth Proportional to 499,310.11, 689,176.11 and 308,213.70
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Solution
The fourth proportional to 499,310.11, 689,176.11 and 308,213.70 is: 425,414.02
Step by Step Solution
- Step 1: Write the proportion equation
499,310.11 : 689,176.11 = 308,213.70 : x - Step 2: Convert to fraction form
499,310.11/689,176.11 = 308,213.70/x - Step 3: Cross multiply
499,310.11x = 689,176.11 × 308,213.70 - Step 4: Simplify right side
499,310.11x = 212,413,518,814.71 - Step 5: Solve for x
x = 212,413,518,814.71/499,310.11 - Step 6: Final answer
x = 425,414.02
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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.