Home / 817,857.33-1,226,980.05-256,891.83

Finding the Fourth Proportional to 817,857.33, 1,226,980.05 and 256,891.83

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Solution

The fourth proportional to 817,857.33, 1,226,980.05 and 256,891.83 is: 385,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,857.33 : 1,226,980.05 = 256,891.83 : x
  2. Step 2: Convert to fraction form
    817,857.33/1,226,980.05 = 256,891.83/x
  3. Step 3: Cross multiply
    817,857.33x = 1,226,980.05 × 256,891.83
  4. Step 4: Simplify right side
    817,857.33x = 315,201,150,417.99
  5. Step 5: Solve for x
    x = 315,201,150,417.99/817,857.33
  6. Step 6: Final answer
    x = 385,398.70

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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.