Finding the Fourth Proportional to 743,716.16, 1,026,299.40 and 404,177.12
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Solution
The fourth proportional to 743,716.16, 1,026,299.40 and 404,177.12 is: 557,748.72
Step by Step Solution
- Step 1: Write the proportion equation
743,716.16 : 1,026,299.40 = 404,177.12 : x - Step 2: Convert to fraction form
743,716.16/1,026,299.40 = 404,177.12/x - Step 3: Cross multiply
743,716.16x = 1,026,299.40 × 404,177.12 - Step 4: Simplify right side
743,716.16x = 414,806,735,749.73 - Step 5: Solve for x
x = 414,806,735,749.73/743,716.16 - Step 6: Final answer
x = 557,748.72
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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.