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Finding the Fourth Proportional to 522,820.18, 784,230.59 and 256,518.91

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Solution

The fourth proportional to 522,820.18, 784,230.59 and 256,518.91 is: 384,778.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,820.18 : 784,230.59 = 256,518.91 : x
  2. Step 2: Convert to fraction form
    522,820.18/784,230.59 = 256,518.91/x
  3. Step 3: Cross multiply
    522,820.18x = 784,230.59 × 256,518.91
  4. Step 4: Simplify right side
    522,820.18x = 201,169,976,135.46
  5. Step 5: Solve for x
    x = 201,169,976,135.46/522,820.18
  6. Step 6: Final answer
    x = 384,778.52

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