Home / 1,118,575.92-1,542,974.40-791,520.56

Finding the Fourth Proportional to 1,118,575.92, 1,542,974.40 and 791,520.56

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Solution

The fourth proportional to 1,118,575.92, 1,542,974.40 and 791,520.56 is: 1,091,831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,575.92 : 1,542,974.40 = 791,520.56 : x
  2. Step 2: Convert to fraction form
    1,118,575.92/1,542,974.40 = 791,520.56/x
  3. Step 3: Cross multiply
    1,118,575.92x = 1,542,974.40 × 791,520.56
  4. Step 4: Simplify right side
    1,118,575.92x = 1,221,295,961,153.66
  5. Step 5: Solve for x
    x = 1,221,295,961,153.66/1,118,575.92
  6. Step 6: Final answer
    x = 1,091,831.09

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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.