Home / 775,410.72-1,069,936.38-431,201.52

Finding the Fourth Proportional to 775,410.72, 1,069,936.38 and 431,201.52

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Solution

The fourth proportional to 775,410.72, 1,069,936.38 and 431,201.52 is: 594,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,410.72 : 1,069,936.38 = 431,201.52 : x
  2. Step 2: Convert to fraction form
    775,410.72/1,069,936.38 = 431,201.52/x
  3. Step 3: Cross multiply
    775,410.72x = 1,069,936.38 × 431,201.52
  4. Step 4: Simplify right side
    775,410.72x = 461,358,193,359.30
  5. Step 5: Solve for x
    x = 461,358,193,359.30/775,410.72
  6. Step 6: Final answer
    x = 594,985.58

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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.