Finding the Fourth Proportional to 1,198,921.13, 1,654,491.58 and 655,045.21
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Solution
The fourth proportional to 1,198,921.13, 1,654,491.58 and 655,045.21 is: 903,951.69
Step by Step Solution
- Step 1: Write the proportion equation
1,198,921.13 : 1,654,491.58 = 655,045.21 : x - Step 2: Convert to fraction form
1,198,921.13/1,654,491.58 = 655,045.21/x - Step 3: Cross multiply
1,198,921.13x = 1,654,491.58 × 655,045.21 - Step 4: Simplify right side
1,198,921.13x = 1,083,766,784,464.33 - Step 5: Solve for x
x = 1,083,766,784,464.33/1,198,921.13 - Step 6: Final answer
x = 903,951.69
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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.