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Finding the Fourth Proportional to 605,149.20, 906,168.60 and 446,518.80

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Solution

The fourth proportional to 605,149.20, 906,168.60 and 446,518.80 is: 668,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,149.20 : 906,168.60 = 446,518.80 : x
  2. Step 2: Convert to fraction form
    605,149.20/906,168.60 = 446,518.80/x
  3. Step 3: Cross multiply
    605,149.20x = 906,168.60 × 446,518.80
  4. Step 4: Simplify right side
    605,149.20x = 404,621,315,869.68
  5. Step 5: Solve for x
    x = 404,621,315,869.68/605,149.20
  6. Step 6: Final answer
    x = 668,630.67

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1.5x scale

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.