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Finding the Fourth Proportional to 509,346.90, 702,898.61 and 282,992.40

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Solution

The fourth proportional to 509,346.90, 702,898.61 and 282,992.40 is: 390,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,346.90 : 702,898.61 = 282,992.40 : x
  2. Step 2: Convert to fraction form
    509,346.90/702,898.61 = 282,992.40/x
  3. Step 3: Cross multiply
    509,346.90x = 702,898.61 × 282,992.40
  4. Step 4: Simplify right side
    509,346.90x = 198,914,963,185.60
  5. Step 5: Solve for x
    x = 198,914,963,185.60/509,346.90
  6. Step 6: Final answer
    x = 390,529.45

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