Home / 563,638.78-777,821.46-308,991.76

Finding the Fourth Proportional to 563,638.78, 777,821.46 and 308,991.76

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Solution

The fourth proportional to 563,638.78, 777,821.46 and 308,991.76 is: 426,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,638.78 : 777,821.46 = 308,991.76 : x
  2. Step 2: Convert to fraction form
    563,638.78/777,821.46 = 308,991.76/x
  3. Step 3: Cross multiply
    563,638.78x = 777,821.46 × 308,991.76
  4. Step 4: Simplify right side
    563,638.78x = 240,340,421,891.17
  5. Step 5: Solve for x
    x = 240,340,421,891.17/563,638.78
  6. Step 6: Final answer
    x = 426,408.60

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