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Finding the Fourth Proportional to 496,023.20, 744,034.80 and 318,876.20

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Solution

The fourth proportional to 496,023.20, 744,034.80 and 318,876.20 is: 478,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,023.20 : 744,034.80 = 318,876.20 : x
  2. Step 2: Convert to fraction form
    496,023.20/744,034.80 = 318,876.20/x
  3. Step 3: Cross multiply
    496,023.20x = 744,034.80 × 318,876.20
  4. Step 4: Simplify right side
    496,023.20x = 237,254,989,691.76
  5. Step 5: Solve for x
    x = 237,254,989,691.76/496,023.20
  6. Step 6: Final answer
    x = 478,314.30

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