Home / 1,112,180.82-1,534,793.30-628,729.90

Finding the Fourth Proportional to 1,112,180.82, 1,534,793.30 and 628,729.90

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Solution

The fourth proportional to 1,112,180.82, 1,534,793.30 and 628,729.90 is: 867,638.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,180.82 : 1,534,793.30 = 628,729.90 : x
  2. Step 2: Convert to fraction form
    1,112,180.82/1,534,793.30 = 628,729.90/x
  3. Step 3: Cross multiply
    1,112,180.82x = 1,534,793.30 × 628,729.90
  4. Step 4: Simplify right side
    1,112,180.82x = 964,970,438,029.67
  5. Step 5: Solve for x
    x = 964,970,438,029.67/1,112,180.82
  6. Step 6: Final answer
    x = 867,638.09

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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.