Finding the Fourth Proportional to 1,127,481.74, 1,690,963.80 and 672,201.80
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Solution
The fourth proportional to 1,127,481.74, 1,690,963.80 and 672,201.80 is: 1,008,148.40
Step by Step Solution
- Step 1: Write the proportion equation
1,127,481.74 : 1,690,963.80 = 672,201.80 : x - Step 2: Convert to fraction form
1,127,481.74/1,690,963.80 = 672,201.80/x - Step 3: Cross multiply
1,127,481.74x = 1,690,963.80 × 672,201.80 - Step 4: Simplify right side
1,127,481.74x = 1,136,668,901,640.02 - Step 5: Solve for x
x = 1,136,668,901,640.02/1,127,481.74 - Step 6: Final answer
x = 1,008,148.40
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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.