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Finding the Fourth Proportional to 260,574.66, 390,857.88 and 83,080.47

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Solution

The fourth proportional to 260,574.66, 390,857.88 and 83,080.47 is: 124,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,574.66 : 390,857.88 = 83,080.47 : x
  2. Step 2: Convert to fraction form
    260,574.66/390,857.88 = 83,080.47/x
  3. Step 3: Cross multiply
    260,574.66x = 390,857.88 × 83,080.47
  4. Step 4: Simplify right side
    260,574.66x = 32,472,656,373.60
  5. Step 5: Solve for x
    x = 32,472,656,373.60/260,574.66
  6. Step 6: Final answer
    x = 124,619.39

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