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Finding the Fourth Proportional to 718,800.25, 1,078,086.12 and 238,988.15

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Solution

The fourth proportional to 718,800.25, 1,078,086.12 and 238,988.15 is: 358,444.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,800.25 : 1,078,086.12 = 238,988.15 : x
  2. Step 2: Convert to fraction form
    718,800.25/1,078,086.12 = 238,988.15/x
  3. Step 3: Cross multiply
    718,800.25x = 1,078,086.12 × 238,988.15
  4. Step 4: Simplify right side
    718,800.25x = 257,649,807,359.48
  5. Step 5: Solve for x
    x = 257,649,807,359.48/718,800.25
  6. Step 6: Final answer
    x = 358,444.24

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