Home / 1,188,876.60-1,783,450.22-431,074.98

Finding the Fourth Proportional to 1,188,876.60, 1,783,450.22 and 431,074.98

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Solution

The fourth proportional to 1,188,876.60, 1,783,450.22 and 431,074.98 is: 646,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,876.60 : 1,783,450.22 = 431,074.98 : x
  2. Step 2: Convert to fraction form
    1,188,876.60/1,783,450.22 = 431,074.98/x
  3. Step 3: Cross multiply
    1,188,876.60x = 1,783,450.22 × 431,074.98
  4. Step 4: Simplify right side
    1,188,876.60x = 768,800,765,762.12
  5. Step 5: Solve for x
    x = 768,800,765,762.12/1,188,876.60
  6. Step 6: Final answer
    x = 646,661.53

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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.