Finding the Fourth Proportional to 512,731.21, 707,576.48 and 283,293.77
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Solution
The fourth proportional to 512,731.21, 707,576.48 and 283,293.77 is: 390,949.50
Step by Step Solution
- Step 1: Write the proportion equation
512,731.21 : 707,576.48 = 283,293.77 : x - Step 2: Convert to fraction form
512,731.21/707,576.48 = 283,293.77/x - Step 3: Cross multiply
512,731.21x = 707,576.48 × 283,293.77 - Step 4: Simplify right side
512,731.21x = 200,452,011,059.71 - Step 5: Solve for x
x = 200,452,011,059.71/512,731.21 - Step 6: Final answer
x = 390,949.50
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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.