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Finding the Fourth Proportional to 978,620.40, 1,467,578.43 and 338,750.28

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Solution

The fourth proportional to 978,620.40, 1,467,578.43 and 338,750.28 is: 508,003.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,620.40 : 1,467,578.43 = 338,750.28 : x
  2. Step 2: Convert to fraction form
    978,620.40/1,467,578.43 = 338,750.28/x
  3. Step 3: Cross multiply
    978,620.40x = 1,467,578.43 × 338,750.28
  4. Step 4: Simplify right side
    978,620.40x = 497,142,604,084.46
  5. Step 5: Solve for x
    x = 497,142,604,084.46/978,620.40
  6. Step 6: Final answer
    x = 508,003.52

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