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Finding the Fourth Proportional to 1,439.85, 2,159.87 and 562.53

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Solution

The fourth proportional to 1,439.85, 2,159.87 and 562.53 is: 843.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.85 : 2,159.87 = 562.53 : x
  2. Step 2: Convert to fraction form
    1,439.85/2,159.87 = 562.53/x
  3. Step 3: Cross multiply
    1,439.85x = 2,159.87 × 562.53
  4. Step 4: Simplify right side
    1,439.85x = 1,214,988.86
  5. Step 5: Solve for x
    x = 1,214,988.86/1,439.85
  6. Step 6: Final answer
    x = 843.83

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