Finding the Fourth Proportional to 639,438.35, 882,425.00 and 352,958.49
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Solution
The fourth proportional to 639,438.35, 882,425.00 and 352,958.49 is: 487,082.76
Step by Step Solution
- Step 1: Write the proportion equation
639,438.35 : 882,425.00 = 352,958.49 : x - Step 2: Convert to fraction form
639,438.35/882,425.00 = 352,958.49/x - Step 3: Cross multiply
639,438.35x = 882,425.00 × 352,958.49 - Step 4: Simplify right side
639,438.35x = 311,459,396,420.65 - Step 5: Solve for x
x = 311,459,396,420.65/639,438.35 - Step 6: Final answer
x = 487,082.76
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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.