Home / 430,534.14-645,853.06-142,355.58

Finding the Fourth Proportional to 430,534.14, 645,853.06 and 142,355.58

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Solution

The fourth proportional to 430,534.14, 645,853.06 and 142,355.58 is: 213,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,534.14 : 645,853.06 = 142,355.58 : x
  2. Step 2: Convert to fraction form
    430,534.14/645,853.06 = 142,355.58/x
  3. Step 3: Cross multiply
    430,534.14x = 645,853.06 × 142,355.58
  4. Step 4: Simplify right side
    430,534.14x = 91,940,786,951.07
  5. Step 5: Solve for x
    x = 91,940,786,951.07/430,534.14
  6. Step 6: Final answer
    x = 213,550.51

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