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Finding the Fourth Proportional to 623,763.18, 860,720.88 and 351,835.55

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Solution

The fourth proportional to 623,763.18, 860,720.88 and 351,835.55 is: 485,492.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,763.18 : 860,720.88 = 351,835.55 : x
  2. Step 2: Convert to fraction form
    623,763.18/860,720.88 = 351,835.55/x
  3. Step 3: Cross multiply
    623,763.18x = 860,720.88 × 351,835.55
  4. Step 4: Simplify right side
    623,763.18x = 302,832,204,454.77
  5. Step 5: Solve for x
    x = 302,832,204,454.77/623,763.18
  6. Step 6: Final answer
    x = 485,492.27

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