Finding the Fourth Proportional to 1,780,384.12, 2,454,489.86 and 1,126,684.96
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Solution
The fourth proportional to 1,780,384.12, 2,454,489.86 and 1,126,684.96 is: 1,553,280.99
Step by Step Solution
- Step 1: Write the proportion equation
1,780,384.12 : 2,454,489.86 = 1,126,684.96 : x - Step 2: Convert to fraction form
1,780,384.12/2,454,489.86 = 1,126,684.96/x - Step 3: Cross multiply
1,780,384.12x = 2,454,489.86 × 1,126,684.96 - Step 4: Simplify right side
1,780,384.12x = 2,765,436,797,964.86 - Step 5: Solve for x
x = 2,765,436,797,964.86/1,780,384.12 - Step 6: Final answer
x = 1,553,280.99
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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.