Home / 762,785.54-1,143,735.24-289,212.56

Finding the Fourth Proportional to 762,785.54, 1,143,735.24 and 289,212.56

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Solution

The fourth proportional to 762,785.54, 1,143,735.24 and 289,212.56 is: 433,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,785.54 : 1,143,735.24 = 289,212.56 : x
  2. Step 2: Convert to fraction form
    762,785.54/1,143,735.24 = 289,212.56/x
  3. Step 3: Cross multiply
    762,785.54x = 1,143,735.24 × 289,212.56
  4. Step 4: Simplify right side
    762,785.54x = 330,782,596,722.61
  5. Step 5: Solve for x
    x = 330,782,596,722.61/762,785.54
  6. Step 6: Final answer
    x = 433,650.85

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1.5x scale

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.