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Finding the Fourth Proportional to 457,602.70, 686,439.13 and 153,998.34

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Solution

The fourth proportional to 457,602.70, 686,439.13 and 153,998.34 is: 231,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,602.70 : 686,439.13 = 153,998.34 : x
  2. Step 2: Convert to fraction form
    457,602.70/686,439.13 = 153,998.34/x
  3. Step 3: Cross multiply
    457,602.70x = 686,439.13 × 153,998.34
  4. Step 4: Simplify right side
    457,602.70x = 105,710,486,531.04
  5. Step 5: Solve for x
    x = 105,710,486,531.04/457,602.70
  6. Step 6: Final answer
    x = 231,009.32

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