Home / 769,997.39-1,062,603.45-425,815.55

Finding the Fourth Proportional to 769,997.39, 1,062,603.45 and 425,815.55

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Solution

The fourth proportional to 769,997.39, 1,062,603.45 and 425,815.55 is: 587,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,997.39 : 1,062,603.45 = 425,815.55 : x
  2. Step 2: Convert to fraction form
    769,997.39/1,062,603.45 = 425,815.55/x
  3. Step 3: Cross multiply
    769,997.39x = 1,062,603.45 × 425,815.55
  4. Step 4: Simplify right side
    769,997.39x = 452,473,067,180.63
  5. Step 5: Solve for x
    x = 452,473,067,180.63/769,997.39
  6. Step 6: Final answer
    x = 587,629.36

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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.