Finding the Fourth Proportional to 1,603,676.53, 2,213,128.70 and 878,524.03
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Solution
The fourth proportional to 1,603,676.53, 2,213,128.70 and 878,524.03 is: 1,212,393.34
Step by Step Solution
- Step 1: Write the proportion equation
1,603,676.53 : 2,213,128.70 = 878,524.03 : x - Step 2: Convert to fraction form
1,603,676.53/2,213,128.70 = 878,524.03/x - Step 3: Cross multiply
1,603,676.53x = 2,213,128.70 × 878,524.03 - Step 4: Simplify right side
1,603,676.53x = 1,944,286,744,432.66 - Step 5: Solve for x
x = 1,944,286,744,432.66/1,603,676.53 - Step 6: Final answer
x = 1,212,393.34
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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.