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Finding the Fourth Proportional to 693,712.22, 957,477.30 and 421,722.50

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Solution

The fourth proportional to 693,712.22, 957,477.30 and 421,722.50 is: 582,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,712.22 : 957,477.30 = 421,722.50 : x
  2. Step 2: Convert to fraction form
    693,712.22/957,477.30 = 421,722.50/x
  3. Step 3: Cross multiply
    693,712.22x = 957,477.30 × 421,722.50
  4. Step 4: Simplify right side
    693,712.22x = 403,789,720,649.25
  5. Step 5: Solve for x
    x = 403,789,720,649.25/693,712.22
  6. Step 6: Final answer
    x = 582,070.94

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