Home / 817,134.36-1,225,701.78-256,212.60

Finding the Fourth Proportional to 817,134.36, 1,225,701.78 and 256,212.60

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Solution

The fourth proportional to 817,134.36, 1,225,701.78 and 256,212.60 is: 384,318.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,134.36 : 1,225,701.78 = 256,212.60 : x
  2. Step 2: Convert to fraction form
    817,134.36/1,225,701.78 = 256,212.60/x
  3. Step 3: Cross multiply
    817,134.36x = 1,225,701.78 × 256,212.60
  4. Step 4: Simplify right side
    817,134.36x = 314,040,239,878.43
  5. Step 5: Solve for x
    x = 314,040,239,878.43/817,134.36
  6. Step 6: Final answer
    x = 384,318.98

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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.