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Finding the Fourth Proportional to 626,510.20, 939,798.08 and 289,865.28

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Solution

The fourth proportional to 626,510.20, 939,798.08 and 289,865.28 is: 434,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,510.20 : 939,798.08 = 289,865.28 : x
  2. Step 2: Convert to fraction form
    626,510.20/939,798.08 = 289,865.28/x
  3. Step 3: Cross multiply
    626,510.20x = 939,798.08 × 289,865.28
  4. Step 4: Simplify right side
    626,510.20x = 272,414,833,602.66
  5. Step 5: Solve for x
    x = 272,414,833,602.66/626,510.20
  6. Step 6: Final answer
    x = 434,813.09

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