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Finding the Fourth Proportional to 652,002.10, 978,003.15 and 439,425.70

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Solution

The fourth proportional to 652,002.10, 978,003.15 and 439,425.70 is: 659,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,002.10 : 978,003.15 = 439,425.70 : x
  2. Step 2: Convert to fraction form
    652,002.10/978,003.15 = 439,425.70/x
  3. Step 3: Cross multiply
    652,002.10x = 978,003.15 × 439,425.70
  4. Step 4: Simplify right side
    652,002.10x = 429,759,718,790.96
  5. Step 5: Solve for x
    x = 429,759,718,790.96/652,002.10
  6. Step 6: Final answer
    x = 659,138.55

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