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Finding the Fourth Proportional to 603,905.80, 906,377.10 and 267,464.20

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Solution

The fourth proportional to 603,905.80, 906,377.10 and 267,464.20 is: 401,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,905.80 : 906,377.10 = 267,464.20 : x
  2. Step 2: Convert to fraction form
    603,905.80/906,377.10 = 267,464.20/x
  3. Step 3: Cross multiply
    603,905.80x = 906,377.10 × 267,464.20
  4. Step 4: Simplify right side
    603,905.80x = 242,423,425,949.82
  5. Step 5: Solve for x
    x = 242,423,425,949.82/603,905.80
  6. Step 6: Final answer
    x = 401,425.89

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Double scale
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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.