Finding the Fourth Proportional to 687,609.44, 1,031,392.56 and 188,969.12
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Solution
The fourth proportional to 687,609.44, 1,031,392.56 and 188,969.12 is: 283,447.74
Step by Step Solution
- Step 1: Write the proportion equation
687,609.44 : 1,031,392.56 = 188,969.12 : x - Step 2: Convert to fraction form
687,609.44/1,031,392.56 = 188,969.12/x - Step 3: Cross multiply
687,609.44x = 1,031,392.56 × 188,969.12 - Step 4: Simplify right side
687,609.44x = 194,901,344,437.75 - Step 5: Solve for x
x = 194,901,344,437.75/687,609.44 - Step 6: Final answer
x = 283,447.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.