Home / 1,308,128.20-1,805,257.88-791,976.76

Finding the Fourth Proportional to 1,308,128.20, 1,805,257.88 and 791,976.76

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Solution

The fourth proportional to 1,308,128.20, 1,805,257.88 and 791,976.76 is: 1,092,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,128.20 : 1,805,257.88 = 791,976.76 : x
  2. Step 2: Convert to fraction form
    1,308,128.20/1,805,257.88 = 791,976.76/x
  3. Step 3: Cross multiply
    1,308,128.20x = 1,805,257.88 × 791,976.76
  4. Step 4: Simplify right side
    1,308,128.20x = 1,429,722,286,766.87
  5. Step 5: Solve for x
    x = 1,429,722,286,766.87/1,308,128.20
  6. Step 6: Final answer
    x = 1,092,952.73

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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.