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Finding the Fourth Proportional to 663,298.10, 915,354.46 and 376,833.90

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Solution

The fourth proportional to 663,298.10, 915,354.46 and 376,833.90 is: 520,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,298.10 : 915,354.46 = 376,833.90 : x
  2. Step 2: Convert to fraction form
    663,298.10/915,354.46 = 376,833.90/x
  3. Step 3: Cross multiply
    663,298.10x = 915,354.46 × 376,833.90
  4. Step 4: Simplify right side
    663,298.10x = 344,936,594,947.82
  5. Step 5: Solve for x
    x = 344,936,594,947.82/663,298.10
  6. Step 6: Final answer
    x = 520,032.54

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