Finding the Fourth Proportional to 1,132,657.62, 1,563,102.99 and 642,647.81
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Solution
The fourth proportional to 1,132,657.62, 1,563,102.99 and 642,647.81 is: 886,874.10
Step by Step Solution
- Step 1: Write the proportion equation
1,132,657.62 : 1,563,102.99 = 642,647.81 : x - Step 2: Convert to fraction form
1,132,657.62/1,563,102.99 = 642,647.81/x - Step 3: Cross multiply
1,132,657.62x = 1,563,102.99 × 642,647.81 - Step 4: Simplify right side
1,132,657.62x = 1,004,524,705,512.44 - Step 5: Solve for x
x = 1,004,524,705,512.44/1,132,657.62 - Step 6: Final answer
x = 886,874.10
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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.