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Finding the Fourth Proportional to 615,434.54, 848,630.04 and 400,175.42

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Solution

The fourth proportional to 615,434.54, 848,630.04 and 400,175.42 is: 551,806.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,434.54 : 848,630.04 = 400,175.42 : x
  2. Step 2: Convert to fraction form
    615,434.54/848,630.04 = 400,175.42/x
  3. Step 3: Cross multiply
    615,434.54x = 848,630.04 × 400,175.42
  4. Step 4: Simplify right side
    615,434.54x = 339,600,878,438.47
  5. Step 5: Solve for x
    x = 339,600,878,438.47/615,434.54
  6. Step 6: Final answer
    x = 551,806.67

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