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Finding the Fourth Proportional to 692,639.37, 955,833.03 and 386,720.45

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Solution

The fourth proportional to 692,639.37, 955,833.03 and 386,720.45 is: 533,669.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,639.37 : 955,833.03 = 386,720.45 : x
  2. Step 2: Convert to fraction form
    692,639.37/955,833.03 = 386,720.45/x
  3. Step 3: Cross multiply
    692,639.37x = 955,833.03 × 386,720.45
  4. Step 4: Simplify right side
    692,639.37x = 369,640,174,707.30
  5. Step 5: Solve for x
    x = 369,640,174,707.30/692,639.37
  6. Step 6: Final answer
    x = 533,669.02

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