Home / 744,890.88-1,027,972.72-422,614.56

Finding the Fourth Proportional to 744,890.88, 1,027,972.72 and 422,614.56

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Solution

The fourth proportional to 744,890.88, 1,027,972.72 and 422,614.56 is: 583,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,890.88 : 1,027,972.72 = 422,614.56 : x
  2. Step 2: Convert to fraction form
    744,890.88/1,027,972.72 = 422,614.56/x
  3. Step 3: Cross multiply
    744,890.88x = 1,027,972.72 × 422,614.56
  4. Step 4: Simplify right side
    744,890.88x = 434,436,238,754.80
  5. Step 5: Solve for x
    x = 434,436,238,754.80/744,890.88
  6. Step 6: Final answer
    x = 583,221.32

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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.