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Finding the Fourth Proportional to 496,024.20, 744,036.30 and 318,877.20

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Solution

The fourth proportional to 496,024.20, 744,036.30 and 318,877.20 is: 478,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,024.20 : 744,036.30 = 318,877.20 : x
  2. Step 2: Convert to fraction form
    496,024.20/744,036.30 = 318,877.20/x
  3. Step 3: Cross multiply
    496,024.20x = 744,036.30 × 318,877.20
  4. Step 4: Simplify right side
    496,024.20x = 237,256,212,042.36
  5. Step 5: Solve for x
    x = 237,256,212,042.36/496,024.20
  6. Step 6: Final answer
    x = 478,315.80

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