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Finding the Fourth Proportional to 647,581.80, 971,372.70 and 579,930.60

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Solution

The fourth proportional to 647,581.80, 971,372.70 and 579,930.60 is: 869,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,581.80 : 971,372.70 = 579,930.60 : x
  2. Step 2: Convert to fraction form
    647,581.80/971,372.70 = 579,930.60/x
  3. Step 3: Cross multiply
    647,581.80x = 971,372.70 × 579,930.60
  4. Step 4: Simplify right side
    647,581.80x = 563,328,752,734.62
  5. Step 5: Solve for x
    x = 563,328,752,734.62/647,581.80
  6. Step 6: Final answer
    x = 869,895.90

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