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Finding the Fourth Proportional to 688,313.43, 949,489.70 and 639,602.19

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Solution

The fourth proportional to 688,313.43, 949,489.70 and 639,602.19 is: 882,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,313.43 : 949,489.70 = 639,602.19 : x
  2. Step 2: Convert to fraction form
    688,313.43/949,489.70 = 639,602.19/x
  3. Step 3: Cross multiply
    688,313.43x = 949,489.70 × 639,602.19
  4. Step 4: Simplify right side
    688,313.43x = 607,295,688,304.43
  5. Step 5: Solve for x
    x = 607,295,688,304.43/688,313.43
  6. Step 6: Final answer
    x = 882,295.28

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