Home / 744,912.60-1,028,002.72-422,636.28

Finding the Fourth Proportional to 744,912.60, 1,028,002.72 and 422,636.28

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Solution

The fourth proportional to 744,912.60, 1,028,002.72 and 422,636.28 is: 583,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,912.60 : 1,028,002.72 = 422,636.28 : x
  2. Step 2: Convert to fraction form
    744,912.60/1,028,002.72 = 422,636.28/x
  3. Step 3: Cross multiply
    744,912.60x = 1,028,002.72 × 422,636.28
  4. Step 4: Simplify right side
    744,912.60x = 434,471,245,410.68
  5. Step 5: Solve for x
    x = 434,471,245,410.68/744,912.60
  6. Step 6: Final answer
    x = 583,251.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.