Finding the Fourth Proportional to 899,336.21, 1,241,087.28 and 491,438.12
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Solution
The fourth proportional to 899,336.21, 1,241,087.28 and 491,438.12 is: 678,186.41
Step by Step Solution
- Step 1: Write the proportion equation
899,336.21 : 1,241,087.28 = 491,438.12 : x - Step 2: Convert to fraction form
899,336.21/1,241,087.28 = 491,438.12/x - Step 3: Cross multiply
899,336.21x = 1,241,087.28 × 491,438.12 - Step 4: Simplify right side
899,336.21x = 609,917,593,433.68 - Step 5: Solve for x
x = 609,917,593,433.68/899,336.21 - Step 6: Final answer
x = 678,186.41
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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.