Finding the Fourth Proportional to 812,034.36, 1,120,578.84 and 449,458.92
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Solution
The fourth proportional to 812,034.36, 1,120,578.84 and 449,458.92 is: 620,237.49
Step by Step Solution
- Step 1: Write the proportion equation
812,034.36 : 1,120,578.84 = 449,458.92 : x - Step 2: Convert to fraction form
812,034.36/1,120,578.84 = 449,458.92/x - Step 3: Cross multiply
812,034.36x = 1,120,578.84 × 449,458.92 - Step 4: Simplify right side
812,034.36x = 503,654,155,201.25 - Step 5: Solve for x
x = 503,654,155,201.25/812,034.36 - Step 6: Final answer
x = 620,237.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.