Home / 925,716.78-1,388,485.26-628,109.82

Finding the Fourth Proportional to 925,716.78, 1,388,485.26 and 628,109.82

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Solution

The fourth proportional to 925,716.78, 1,388,485.26 and 628,109.82 is: 942,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,716.78 : 1,388,485.26 = 628,109.82 : x
  2. Step 2: Convert to fraction form
    925,716.78/1,388,485.26 = 628,109.82/x
  3. Step 3: Cross multiply
    925,716.78x = 1,388,485.26 × 628,109.82
  4. Step 4: Simplify right side
    925,716.78x = 872,121,226,731.25
  5. Step 5: Solve for x
    x = 872,121,226,731.25/925,716.78
  6. Step 6: Final answer
    x = 942,103.72

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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.