Home / 817,052.76-1,225,579.68-256,131

Finding the Fourth Proportional to 817,052.76, 1,225,579.68 and 256,131

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Solution

The fourth proportional to 817,052.76, 1,225,579.68 and 256,131 is: 384,196.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,052.76 : 1,225,579.68 = 256,131 : x
  2. Step 2: Convert to fraction form
    817,052.76/1,225,579.68 = 256,131/x
  3. Step 3: Cross multiply
    817,052.76x = 1,225,579.68 × 256,131
  4. Step 4: Simplify right side
    817,052.76x = 313,908,949,018.08
  5. Step 5: Solve for x
    x = 313,908,949,018.08/817,052.76
  6. Step 6: Final answer
    x = 384,196.67

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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.