Home / 817,099.97-1,225,846.78-256,134.47

Finding the Fourth Proportional to 817,099.97, 1,225,846.78 and 256,134.47

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Solution

The fourth proportional to 817,099.97, 1,225,846.78 and 256,134.47 is: 384,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,099.97 : 1,225,846.78 = 256,134.47 : x
  2. Step 2: Convert to fraction form
    817,099.97/1,225,846.78 = 256,134.47/x
  3. Step 3: Cross multiply
    817,099.97x = 1,225,846.78 × 256,134.47
  4. Step 4: Simplify right side
    817,099.97x = 313,981,608,526.94
  5. Step 5: Solve for x
    x = 313,981,608,526.94/817,099.97
  6. Step 6: Final answer
    x = 384,263.40

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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.