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Finding the Fourth Proportional to 603,857.80, 906,305.10 and 267,416.20

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Solution

The fourth proportional to 603,857.80, 906,305.10 and 267,416.20 is: 401,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,857.80 : 906,305.10 = 267,416.20 : x
  2. Step 2: Convert to fraction form
    603,857.80/906,305.10 = 267,416.20/x
  3. Step 3: Cross multiply
    603,857.80x = 906,305.10 × 267,416.20
  4. Step 4: Simplify right side
    603,857.80x = 242,360,665,882.62
  5. Step 5: Solve for x
    x = 242,360,665,882.62/603,857.80
  6. Step 6: Final answer
    x = 401,353.87

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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.