Finding the Fourth Proportional to 1,687,638.62, 2,328,851.58 and 923,544.56
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Solution
The fourth proportional to 1,687,638.62, 2,328,851.58 and 923,544.56 is: 1,274,442.40
Step by Step Solution
- Step 1: Write the proportion equation
1,687,638.62 : 2,328,851.58 = 923,544.56 : x - Step 2: Convert to fraction form
1,687,638.62/2,328,851.58 = 923,544.56/x - Step 3: Cross multiply
1,687,638.62x = 2,328,851.58 × 923,544.56 - Step 4: Simplify right side
1,687,638.62x = 2,150,798,207,756.41 - Step 5: Solve for x
x = 2,150,798,207,756.41/1,687,638.62 - Step 6: Final answer
x = 1,274,442.40
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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.