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Finding the Fourth Proportional to 421,033.60, 633,105.60 and 352,604.80

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Solution

The fourth proportional to 421,033.60, 633,105.60 and 352,604.80 is: 530,209.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,033.60 : 633,105.60 = 352,604.80 : x
  2. Step 2: Convert to fraction form
    421,033.60/633,105.60 = 352,604.80/x
  3. Step 3: Cross multiply
    421,033.60x = 633,105.60 × 352,604.80
  4. Step 4: Simplify right side
    421,033.60x = 223,236,073,466.88
  5. Step 5: Solve for x
    x = 223,236,073,466.88/421,033.60
  6. Step 6: Final answer
    x = 530,209.64

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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.