Home / 627,747.20-940,801.60-290,748.80

Finding the Fourth Proportional to 627,747.20, 940,801.60 and 290,748.80

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Solution

The fourth proportional to 627,747.20, 940,801.60 and 290,748.80 is: 435,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,747.20 : 940,801.60 = 290,748.80 : x
  2. Step 2: Convert to fraction form
    627,747.20/940,801.60 = 290,748.80/x
  3. Step 3: Cross multiply
    627,747.20x = 940,801.60 × 290,748.80
  4. Step 4: Simplify right side
    627,747.20x = 273,536,936,238.08
  5. Step 5: Solve for x
    x = 273,536,936,238.08/627,747.20
  6. Step 6: Final answer
    x = 435,743.78

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1.5x scale

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.