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Finding the Fourth Proportional to 607,742.19, 838,800.23 and 400,647.20

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Solution

The fourth proportional to 607,742.19, 838,800.23 and 400,647.20 is: 552,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,742.19 : 838,800.23 = 400,647.20 : x
  2. Step 2: Convert to fraction form
    607,742.19/838,800.23 = 400,647.20/x
  3. Step 3: Cross multiply
    607,742.19x = 838,800.23 × 400,647.20
  4. Step 4: Simplify right side
    607,742.19x = 336,062,957,311.62
  5. Step 5: Solve for x
    x = 336,062,957,311.62/607,742.19
  6. Step 6: Final answer
    x = 552,969.60

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