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Finding the Fourth Proportional to 1,298,432.40, 1,947,648.60 and 411,968.40

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Solution

The fourth proportional to 1,298,432.40, 1,947,648.60 and 411,968.40 is: 617,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,432.40 : 1,947,648.60 = 411,968.40 : x
  2. Step 2: Convert to fraction form
    1,298,432.40/1,947,648.60 = 411,968.40/x
  3. Step 3: Cross multiply
    1,298,432.40x = 1,947,648.60 × 411,968.40
  4. Step 4: Simplify right side
    1,298,432.40x = 802,369,677,504.24
  5. Step 5: Solve for x
    x = 802,369,677,504.24/1,298,432.40
  6. Step 6: Final answer
    x = 617,952.60

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