Finding the Fourth Proportional to 3,451,691.84, 5,178,285.14 and 1,321,776.05
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Solution
The fourth proportional to 3,451,691.84, 5,178,285.14 and 1,321,776.05 is: 1,982,950.27
Step by Step Solution
- Step 1: Write the proportion equation
3,451,691.84 : 5,178,285.14 = 1,321,776.05 : x - Step 2: Convert to fraction form
3,451,691.84/5,178,285.14 = 1,321,776.05/x - Step 3: Cross multiply
3,451,691.84x = 5,178,285.14 × 1,321,776.05 - Step 4: Simplify right side
3,451,691.84x = 6,844,533,245,622.59 - Step 5: Solve for x
x = 6,844,533,245,622.59/3,451,691.84 - Step 6: Final answer
x = 1,982,950.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.