Finding the Fourth Proportional to 899,530.15, 1,241,348.70 and 491,631.97
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Solution
The fourth proportional to 899,530.15, 1,241,348.70 and 491,631.97 is: 678,450.53
Step by Step Solution
- Step 1: Write the proportion equation
899,530.15 : 1,241,348.70 = 491,631.97 : x - Step 2: Convert to fraction form
899,530.15/1,241,348.70 = 491,631.97/x - Step 3: Cross multiply
899,530.15x = 1,241,348.70 × 491,631.97 - Step 4: Simplify right side
899,530.15x = 610,286,706,837.94 - Step 5: Solve for x
x = 610,286,706,837.94/899,530.15 - Step 6: Final answer
x = 678,450.53
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1.5x scale
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.