Finding the Fourth Proportional to 786,604.57, 1,085,546.68 and 442,456.49
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Solution
The fourth proportional to 786,604.57, 1,085,546.68 and 442,456.49 is: 610,608.17
Step by Step Solution
- Step 1: Write the proportion equation
786,604.57 : 1,085,546.68 = 442,456.49 : x - Step 2: Convert to fraction form
786,604.57/1,085,546.68 = 442,456.49/x - Step 3: Cross multiply
786,604.57x = 1,085,546.68 × 442,456.49 - Step 4: Simplify right side
786,604.57x = 480,307,175,371.68 - Step 5: Solve for x
x = 480,307,175,371.68/786,604.57 - Step 6: Final answer
x = 610,608.17
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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.