Home / 858,049.70-1,287,074.55-814,747.10

Finding the Fourth Proportional to 858,049.70, 1,287,074.55 and 814,747.10

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Solution

The fourth proportional to 858,049.70, 1,287,074.55 and 814,747.10 is: 1,222,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,049.70 : 1,287,074.55 = 814,747.10 : x
  2. Step 2: Convert to fraction form
    858,049.70/1,287,074.55 = 814,747.10/x
  3. Step 3: Cross multiply
    858,049.70x = 1,287,074.55 × 814,747.10
  4. Step 4: Simplify right side
    858,049.70x = 1,048,640,257,096.31
  5. Step 5: Solve for x
    x = 1,048,640,257,096.31/858,049.70
  6. Step 6: Final answer
    x = 1,222,120.65

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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.