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Finding the Fourth Proportional to 456,507.30, 684,760.95 and 156,961.20

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Solution

The fourth proportional to 456,507.30, 684,760.95 and 156,961.20 is: 235,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,507.30 : 684,760.95 = 156,961.20 : x
  2. Step 2: Convert to fraction form
    456,507.30/684,760.95 = 156,961.20/x
  3. Step 3: Cross multiply
    456,507.30x = 684,760.95 × 156,961.20
  4. Step 4: Simplify right side
    456,507.30x = 107,480,900,425.14
  5. Step 5: Solve for x
    x = 107,480,900,425.14/456,507.30
  6. Step 6: Final answer
    x = 235,441.80

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