Home / 775,745.52-1,070,660.28-449,011.20

Finding the Fourth Proportional to 775,745.52, 1,070,660.28 and 449,011.20

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Solution

The fourth proportional to 775,745.52, 1,070,660.28 and 449,011.20 is: 619,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,745.52 : 1,070,660.28 = 449,011.20 : x
  2. Step 2: Convert to fraction form
    775,745.52/1,070,660.28 = 449,011.20/x
  3. Step 3: Cross multiply
    775,745.52x = 1,070,660.28 × 449,011.20
  4. Step 4: Simplify right side
    775,745.52x = 480,738,457,115.14
  5. Step 5: Solve for x
    x = 480,738,457,115.14/775,745.52
  6. Step 6: Final answer
    x = 619,711.55

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1.5x scale

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.