Finding the Fourth Proportional to 639,043.33, 957,836.11 and 399,267.49
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Solution
The fourth proportional to 639,043.33, 957,836.11 and 399,267.49 is: 598,445.84
Step by Step Solution
- Step 1: Write the proportion equation
639,043.33 : 957,836.11 = 399,267.49 : x - Step 2: Convert to fraction form
639,043.33/957,836.11 = 399,267.49/x - Step 3: Cross multiply
639,043.33x = 957,836.11 × 399,267.49 - Step 4: Simplify right side
639,043.33x = 382,432,819,471.06 - Step 5: Solve for x
x = 382,432,819,471.06/639,043.33 - Step 6: Final answer
x = 598,445.84
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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.