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Finding the Fourth Proportional to 476,649.31, 714,998.56 and 121,666.40

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Solution

The fourth proportional to 476,649.31, 714,998.56 and 121,666.40 is: 182,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,649.31 : 714,998.56 = 121,666.40 : x
  2. Step 2: Convert to fraction form
    476,649.31/714,998.56 = 121,666.40/x
  3. Step 3: Cross multiply
    476,649.31x = 714,998.56 × 121,666.40
  4. Step 4: Simplify right side
    476,649.31x = 86,991,303,852.46
  5. Step 5: Solve for x
    x = 86,991,303,852.46/476,649.31
  6. Step 6: Final answer
    x = 182,505.88

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