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Finding the Fourth Proportional to 676.06, 1,011.66 and 655

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Solution

The fourth proportional to 676.06, 1,011.66 and 655 is: 980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.06 : 1,011.66 = 655 : x
  2. Step 2: Convert to fraction form
    676.06/1,011.66 = 655/x
  3. Step 3: Cross multiply
    676.06x = 1,011.66 × 655
  4. Step 4: Simplify right side
    676.06x = 662,637.30
  5. Step 5: Solve for x
    x = 662,637.30/676.06
  6. Step 6: Final answer
    x = 980.15

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