Home / 417,981.78-576,819.09-226,998.90

Finding the Fourth Proportional to 417,981.78, 576,819.09 and 226,998.90

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Solution

The fourth proportional to 417,981.78, 576,819.09 and 226,998.90 is: 313,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,981.78 : 576,819.09 = 226,998.90 : x
  2. Step 2: Convert to fraction form
    417,981.78/576,819.09 = 226,998.90/x
  3. Step 3: Cross multiply
    417,981.78x = 576,819.09 × 226,998.90
  4. Step 4: Simplify right side
    417,981.78x = 130,937,298,929.00
  5. Step 5: Solve for x
    x = 130,937,298,929.00/417,981.78
  6. Step 6: Final answer
    x = 313,260.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.