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Finding the Fourth Proportional to 1,805,894.80, 2,708,865.24 and 1,244,778.64

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Solution

The fourth proportional to 1,805,894.80, 2,708,865.24 and 1,244,778.64 is: 1,867,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,894.80 : 2,708,865.24 = 1,244,778.64 : x
  2. Step 2: Convert to fraction form
    1,805,894.80/2,708,865.24 = 1,244,778.64/x
  3. Step 3: Cross multiply
    1,805,894.80x = 2,708,865.24 × 1,244,778.64
  4. Step 4: Simplify right side
    1,805,894.80x = 3,371,937,589,390.47
  5. Step 5: Solve for x
    x = 3,371,937,589,390.47/1,805,894.80
  6. Step 6: Final answer
    x = 1,867,183.84

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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.