Finding the Fourth Proportional to 815,821.86, 1,125,854.28 and 448,296
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Solution
The fourth proportional to 815,821.86, 1,125,854.28 and 448,296 is: 618,659.53
Step by Step Solution
- Step 1: Write the proportion equation
815,821.86 : 1,125,854.28 = 448,296 : x - Step 2: Convert to fraction form
815,821.86/1,125,854.28 = 448,296/x - Step 3: Cross multiply
815,821.86x = 1,125,854.28 × 448,296 - Step 4: Simplify right side
815,821.86x = 504,715,970,306.88 - Step 5: Solve for x
x = 504,715,970,306.88/815,821.86 - Step 6: Final answer
x = 618,659.53
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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.