Home / 752,712.72-1,129,103.24-213,009.44

Finding the Fourth Proportional to 752,712.72, 1,129,103.24 and 213,009.44

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Solution

The fourth proportional to 752,712.72, 1,129,103.24 and 213,009.44 is: 319,523.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,712.72 : 1,129,103.24 = 213,009.44 : x
  2. Step 2: Convert to fraction form
    752,712.72/1,129,103.24 = 213,009.44/x
  3. Step 3: Cross multiply
    752,712.72x = 1,129,103.24 × 213,009.44
  4. Step 4: Simplify right side
    752,712.72x = 240,509,648,854.59
  5. Step 5: Solve for x
    x = 240,509,648,854.59/752,712.72
  6. Step 6: Final answer
    x = 319,523.83

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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.