Finding the Fourth Proportional to 1,125,451.92, 1,553,128.20 and 616,201.68
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Solution
The fourth proportional to 1,125,451.92, 1,553,128.20 and 616,201.68 is: 850,360.81
Step by Step Solution
- Step 1: Write the proportion equation
1,125,451.92 : 1,553,128.20 = 616,201.68 : x - Step 2: Convert to fraction form
1,125,451.92/1,553,128.20 = 616,201.68/x - Step 3: Cross multiply
1,125,451.92x = 1,553,128.20 × 616,201.68 - Step 4: Simplify right side
1,125,451.92x = 957,040,206,095.38 - Step 5: Solve for x
x = 957,040,206,095.38/1,125,451.92 - Step 6: Final answer
x = 850,360.81
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1.5x scale
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.