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Finding the Fourth Proportional to 582,407.60, 873,611.40 and 345,628.40

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Solution

The fourth proportional to 582,407.60, 873,611.40 and 345,628.40 is: 518,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,407.60 : 873,611.40 = 345,628.40 : x
  2. Step 2: Convert to fraction form
    582,407.60/873,611.40 = 345,628.40/x
  3. Step 3: Cross multiply
    582,407.60x = 873,611.40 × 345,628.40
  4. Step 4: Simplify right side
    582,407.60x = 301,944,910,403.76
  5. Step 5: Solve for x
    x = 301,944,910,403.76/582,407.60
  6. Step 6: Final answer
    x = 518,442.60

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