Finding the Fourth Proportional to 498,431.11, 687,850.50 and 283,602.10
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Solution
The fourth proportional to 498,431.11, 687,850.50 and 283,602.10 is: 391,379.76
Step by Step Solution
- Step 1: Write the proportion equation
498,431.11 : 687,850.50 = 283,602.10 : x - Step 2: Convert to fraction form
498,431.11/687,850.50 = 283,602.10/x - Step 3: Cross multiply
498,431.11x = 687,850.50 × 283,602.10 - Step 4: Simplify right side
498,431.11x = 195,075,846,286.05 - Step 5: Solve for x
x = 195,075,846,286.05/498,431.11 - Step 6: Final answer
x = 391,379.76
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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.