Finding the Fourth Proportional to 639,534.24, 882,207.99 and 445,634.82
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Solution
The fourth proportional to 639,534.24, 882,207.99 and 445,634.82 is: 614,732.68
Step by Step Solution
- Step 1: Write the proportion equation
639,534.24 : 882,207.99 = 445,634.82 : x - Step 2: Convert to fraction form
639,534.24/882,207.99 = 445,634.82/x - Step 3: Cross multiply
639,534.24x = 882,207.99 × 445,634.82 - Step 4: Simplify right side
639,534.24x = 393,142,598,826.21 - Step 5: Solve for x
x = 393,142,598,826.21/639,534.24 - Step 6: Final answer
x = 614,732.68
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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.