Home / 858,467.70-1,288,738.35-852,246.90

Finding the Fourth Proportional to 858,467.70, 1,288,738.35 and 852,246.90

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Solution

The fourth proportional to 858,467.70, 1,288,738.35 and 852,246.90 is: 1,279,399.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,467.70 : 1,288,738.35 = 852,246.90 : x
  2. Step 2: Convert to fraction form
    858,467.70/1,288,738.35 = 852,246.90/x
  3. Step 3: Cross multiply
    858,467.70x = 1,288,738.35 × 852,246.90
  4. Step 4: Simplify right side
    858,467.70x = 1,098,323,263,698.62
  5. Step 5: Solve for x
    x = 1,098,323,263,698.62/858,467.70
  6. Step 6: Final answer
    x = 1,279,399.64

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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.