Home / 447,147.42-670,722.57-280,585.50

Finding the Fourth Proportional to 447,147.42, 670,722.57 and 280,585.50

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Solution

The fourth proportional to 447,147.42, 670,722.57 and 280,585.50 is: 420,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,147.42 : 670,722.57 = 280,585.50 : x
  2. Step 2: Convert to fraction form
    447,147.42/670,722.57 = 280,585.50/x
  3. Step 3: Cross multiply
    447,147.42x = 670,722.57 × 280,585.50
  4. Step 4: Simplify right side
    447,147.42x = 188,195,027,664.74
  5. Step 5: Solve for x
    x = 188,195,027,664.74/447,147.42
  6. Step 6: Final answer
    x = 420,879.15

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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.