Finding the Fourth Proportional to 687,489.63, 1,031,262.41 and 327,475.41
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Solution
The fourth proportional to 687,489.63, 1,031,262.41 and 327,475.41 is: 491,226.44
Step by Step Solution
- Step 1: Write the proportion equation
687,489.63 : 1,031,262.41 = 327,475.41 : x - Step 2: Convert to fraction form
687,489.63/1,031,262.41 = 327,475.41/x - Step 3: Cross multiply
687,489.63x = 1,031,262.41 × 327,475.41 - Step 4: Simplify right side
687,489.63x = 337,713,080,532.34 - Step 5: Solve for x
x = 337,713,080,532.34/687,489.63 - Step 6: Final answer
x = 491,226.44
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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.