Home / 842,745.85-1,162,704.40-479,912.42

Finding the Fourth Proportional to 842,745.85, 1,162,704.40 and 479,912.42

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Solution

The fourth proportional to 842,745.85, 1,162,704.40 and 479,912.42 is: 662,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,745.85 : 1,162,704.40 = 479,912.42 : x
  2. Step 2: Convert to fraction form
    842,745.85/1,162,704.40 = 479,912.42/x
  3. Step 3: Cross multiply
    842,745.85x = 1,162,704.40 × 479,912.42
  4. Step 4: Simplify right side
    842,745.85x = 557,996,284,055.63
  5. Step 5: Solve for x
    x = 557,996,284,055.63/842,745.85
  6. Step 6: Final answer
    x = 662,116.92

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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.