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Finding the Fourth Proportional to 650,971.77, 898,133.45 and 421,704.80

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Solution

The fourth proportional to 650,971.77, 898,133.45 and 421,704.80 is: 581,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,971.77 : 898,133.45 = 421,704.80 : x
  2. Step 2: Convert to fraction form
    650,971.77/898,133.45 = 421,704.80/x
  3. Step 3: Cross multiply
    650,971.77x = 898,133.45 × 421,704.80
  4. Step 4: Simplify right side
    650,971.77x = 378,747,186,905.56
  5. Step 5: Solve for x
    x = 378,747,186,905.56/650,971.77
  6. Step 6: Final answer
    x = 581,818.14

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