Home / 813,954.29-1,220,765.18-308,340.95

Finding the Fourth Proportional to 813,954.29, 1,220,765.18 and 308,340.95

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Solution

The fourth proportional to 813,954.29, 1,220,765.18 and 308,340.95 is: 462,448.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,954.29 : 1,220,765.18 = 308,340.95 : x
  2. Step 2: Convert to fraction form
    813,954.29/1,220,765.18 = 308,340.95/x
  3. Step 3: Cross multiply
    813,954.29x = 1,220,765.18 × 308,340.95
  4. Step 4: Simplify right side
    813,954.29x = 376,411,887,682.59
  5. Step 5: Solve for x
    x = 376,411,887,682.59/813,954.29
  6. Step 6: Final answer
    x = 462,448.44

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