Finding the Fourth Proportional to 1,432,183.97, 1,976,465.86 and 820,454.96
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Solution
The fourth proportional to 1,432,183.97, 1,976,465.86 and 820,454.96 is: 1,132,257.62
Step by Step Solution
- Step 1: Write the proportion equation
1,432,183.97 : 1,976,465.86 = 820,454.96 : x - Step 2: Convert to fraction form
1,432,183.97/1,976,465.86 = 820,454.96/x - Step 3: Cross multiply
1,432,183.97x = 1,976,465.86 × 820,454.96 - Step 4: Simplify right side
1,432,183.97x = 1,621,601,220,997.69 - Step 5: Solve for x
x = 1,621,601,220,997.69/1,432,183.97 - Step 6: Final answer
x = 1,132,257.62
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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.