Home / 817,129.62-1,225,694.43-256,209.30

Finding the Fourth Proportional to 817,129.62, 1,225,694.43 and 256,209.30

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Solution

The fourth proportional to 817,129.62, 1,225,694.43 and 256,209.30 is: 384,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,129.62 : 1,225,694.43 = 256,209.30 : x
  2. Step 2: Convert to fraction form
    817,129.62/1,225,694.43 = 256,209.30/x
  3. Step 3: Cross multiply
    817,129.62x = 1,225,694.43 × 256,209.30
  4. Step 4: Simplify right side
    817,129.62x = 314,034,311,924.20
  5. Step 5: Solve for x
    x = 314,034,311,924.20/817,129.62
  6. Step 6: Final answer
    x = 384,313.95

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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.