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Finding the Fourth Proportional to 800,579.80, 1,201,525.80 and 774,335.80

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Solution

The fourth proportional to 800,579.80, 1,201,525.80 and 774,335.80 is: 1,162,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,579.80 : 1,201,525.80 = 774,335.80 : x
  2. Step 2: Convert to fraction form
    800,579.80/1,201,525.80 = 774,335.80/x
  3. Step 3: Cross multiply
    800,579.80x = 1,201,525.80 × 774,335.80
  4. Step 4: Simplify right side
    800,579.80x = 930,384,441,563.64
  5. Step 5: Solve for x
    x = 930,384,441,563.64/800,579.80
  6. Step 6: Final answer
    x = 1,162,138.29

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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.