Finding the Fourth Proportional to 979,806.64, 1,469,710.06 and 305,945.68
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Solution
The fourth proportional to 979,806.64, 1,469,710.06 and 305,945.68 is: 458,918.55
Step by Step Solution
- Step 1: Write the proportion equation
979,806.64 : 1,469,710.06 = 305,945.68 : x - Step 2: Convert to fraction form
979,806.64/1,469,710.06 = 305,945.68/x - Step 3: Cross multiply
979,806.64x = 1,469,710.06 × 305,945.68 - Step 4: Simplify right side
979,806.64x = 449,651,443,709.54 - Step 5: Solve for x
x = 449,651,443,709.54/979,806.64 - Step 6: Final answer
x = 458,918.55
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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.