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Finding the Fourth Proportional to 451,396.70, 677,267.85 and 444,311.90

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Solution

The fourth proportional to 451,396.70, 677,267.85 and 444,311.90 is: 666,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,396.70 : 677,267.85 = 444,311.90 : x
  2. Step 2: Convert to fraction form
    451,396.70/677,267.85 = 444,311.90/x
  3. Step 3: Cross multiply
    451,396.70x = 677,267.85 × 444,311.90
  4. Step 4: Simplify right side
    451,396.70x = 300,918,165,242.42
  5. Step 5: Solve for x
    x = 300,918,165,242.42/451,396.70
  6. Step 6: Final answer
    x = 666,637.94

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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.