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Finding the Fourth Proportional to 448,857.60, 673,286.40 and 445,747.20

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Solution

The fourth proportional to 448,857.60, 673,286.40 and 445,747.20 is: 668,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,857.60 : 673,286.40 = 445,747.20 : x
  2. Step 2: Convert to fraction form
    448,857.60/673,286.40 = 445,747.20/x
  3. Step 3: Cross multiply
    448,857.60x = 673,286.40 × 445,747.20
  4. Step 4: Simplify right side
    448,857.60x = 300,115,527,598.08
  5. Step 5: Solve for x
    x = 300,115,527,598.08/448,857.60
  6. Step 6: Final answer
    x = 668,620.80

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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.