Finding the Fourth Proportional to 749,121.12, 1,123,714.49 and 216,695.97
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Solution
The fourth proportional to 749,121.12, 1,123,714.49 and 216,695.97 is: 325,053.44
Step by Step Solution
- Step 1: Write the proportion equation
749,121.12 : 1,123,714.49 = 216,695.97 : x - Step 2: Convert to fraction form
749,121.12/1,123,714.49 = 216,695.97/x - Step 3: Cross multiply
749,121.12x = 1,123,714.49 × 216,695.97 - Step 4: Simplify right side
749,121.12x = 243,504,400,330.13 - Step 5: Solve for x
x = 243,504,400,330.13/749,121.12 - Step 6: Final answer
x = 325,053.44
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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.