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Finding the Fourth Proportional to 1,769,676, 2,654,523.72 and 439,980

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Solution

The fourth proportional to 1,769,676, 2,654,523.72 and 439,980 is: 659,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,676 : 2,654,523.72 = 439,980 : x
  2. Step 2: Convert to fraction form
    1,769,676/2,654,523.72 = 439,980/x
  3. Step 3: Cross multiply
    1,769,676x = 2,654,523.72 × 439,980
  4. Step 4: Simplify right side
    1,769,676x = 1,167,937,346,325.60
  5. Step 5: Solve for x
    x = 1,167,937,346,325.60/1,769,676
  6. Step 6: Final answer
    x = 659,972.42

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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.