Finding the Fourth Proportional to 991,474.08, 1,368,234.36 and 538,764
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Solution
The fourth proportional to 991,474.08, 1,368,234.36 and 538,764 is: 743,494.39
Step by Step Solution
- Step 1: Write the proportion equation
991,474.08 : 1,368,234.36 = 538,764 : x - Step 2: Convert to fraction form
991,474.08/1,368,234.36 = 538,764/x - Step 3: Cross multiply
991,474.08x = 1,368,234.36 × 538,764 - Step 4: Simplify right side
991,474.08x = 737,155,416,731.04 - Step 5: Solve for x
x = 737,155,416,731.04/991,474.08 - Step 6: Final answer
x = 743,494.39
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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.