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Finding the Fourth Proportional to 744,896.88, 1,027,981 and 422,620.56

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Solution

The fourth proportional to 744,896.88, 1,027,981 and 422,620.56 is: 583,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,896.88 : 1,027,981 = 422,620.56 : x
  2. Step 2: Convert to fraction form
    744,896.88/1,027,981 = 422,620.56/x
  3. Step 3: Cross multiply
    744,896.88x = 1,027,981 × 422,620.56
  4. Step 4: Simplify right side
    744,896.88x = 434,445,905,889.36
  5. Step 5: Solve for x
    x = 434,445,905,889.36/744,896.88
  6. Step 6: Final answer
    x = 583,229.60

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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.