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Finding the Fourth Proportional to 457,207.20, 685,700.51 and 190,823.31

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Solution

The fourth proportional to 457,207.20, 685,700.51 and 190,823.31 is: 286,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,207.20 : 685,700.51 = 190,823.31 : x
  2. Step 2: Convert to fraction form
    457,207.20/685,700.51 = 190,823.31/x
  3. Step 3: Cross multiply
    457,207.20x = 685,700.51 × 190,823.31
  4. Step 4: Simplify right side
    457,207.20x = 130,847,640,032.77
  5. Step 5: Solve for x
    x = 130,847,640,032.77/457,207.20
  6. Step 6: Final answer
    x = 286,188.93

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