Finding the Fourth Proportional to 691,691.99, 954,511.44 and 381,606.98
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Solution
The fourth proportional to 691,691.99, 954,511.44 and 381,606.98 is: 526,604.66
Step by Step Solution
- Step 1: Write the proportion equation
691,691.99 : 954,511.44 = 381,606.98 : x - Step 2: Convert to fraction form
691,691.99/954,511.44 = 381,606.98/x - Step 3: Cross multiply
691,691.99x = 954,511.44 × 381,606.98 - Step 4: Simplify right side
691,691.99x = 364,248,227,993.85 - Step 5: Solve for x
x = 364,248,227,993.85/691,691.99 - Step 6: Final answer
x = 526,604.66
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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.