Finding the Fourth Proportional to 1,126,268.62, 1,553,870.19 and 642,493.42
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Solution
The fourth proportional to 1,126,268.62, 1,553,870.19 and 642,493.42 is: 886,423.86
Step by Step Solution
- Step 1: Write the proportion equation
1,126,268.62 : 1,553,870.19 = 642,493.42 : x - Step 2: Convert to fraction form
1,126,268.62/1,553,870.19 = 642,493.42/x - Step 3: Cross multiply
1,126,268.62x = 1,553,870.19 × 642,493.42 - Step 4: Simplify right side
1,126,268.62x = 998,351,372,609.15 - Step 5: Solve for x
x = 998,351,372,609.15/1,126,268.62 - Step 6: Final answer
x = 886,423.86
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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.