Finding the Fourth Proportional to 1,382,917.92, 1,908,287.28 and 771,013.08
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Solution
The fourth proportional to 1,382,917.92, 1,908,287.28 and 771,013.08 is: 1,063,920.30
Step by Step Solution
- Step 1: Write the proportion equation
1,382,917.92 : 1,908,287.28 = 771,013.08 : x - Step 2: Convert to fraction form
1,382,917.92/1,908,287.28 = 771,013.08/x - Step 3: Cross multiply
1,382,917.92x = 1,908,287.28 × 771,013.08 - Step 4: Simplify right side
1,382,917.92x = 1,471,314,453,277.62 - Step 5: Solve for x
x = 1,471,314,453,277.62/1,382,917.92 - Step 6: Final answer
x = 1,063,920.30
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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.