Home / 2,665,455.42-3,998,178.26-868,336.78

Finding the Fourth Proportional to 2,665,455.42, 3,998,178.26 and 868,336.78

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Solution

The fourth proportional to 2,665,455.42, 3,998,178.26 and 868,336.78 is: 1,302,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665,455.42 : 3,998,178.26 = 868,336.78 : x
  2. Step 2: Convert to fraction form
    2,665,455.42/3,998,178.26 = 868,336.78/x
  3. Step 3: Cross multiply
    2,665,455.42x = 3,998,178.26 × 868,336.78
  4. Step 4: Simplify right side
    2,665,455.42x = 3,471,765,236,154.40
  5. Step 5: Solve for x
    x = 3,471,765,236,154.40/2,665,455.42
  6. Step 6: Final answer
    x = 1,302,503.58

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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.