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Finding the Fourth Proportional to 647,620.10, 971,138.55 and 292,451.30

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Solution

The fourth proportional to 647,620.10, 971,138.55 and 292,451.30 is: 438,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,620.10 : 971,138.55 = 292,451.30 : x
  2. Step 2: Convert to fraction form
    647,620.10/971,138.55 = 292,451.30/x
  3. Step 3: Cross multiply
    647,620.10x = 971,138.55 × 292,451.30
  4. Step 4: Simplify right side
    647,620.10x = 284,010,731,427.62
  5. Step 5: Solve for x
    x = 284,010,731,427.62/647,620.10
  6. Step 6: Final answer
    x = 438,545.27

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